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1 | /* this works around a bug in mingw32 providing a non-working setjmp */ |
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2 | #define USE_NO_MINGW_SETJMP_TWO_ARGS |
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3 | |
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4 | #define NDEBUG 1 |
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5 | |
1 | #include "libcoro/coro.c" |
6 | #include "libcoro/coro.c" |
2 | |
7 | |
3 | #define PERL_NO_GET_CONTEXT |
8 | #define PERL_NO_GET_CONTEXT |
4 | #define PERL_EXT |
9 | #define PERL_EXT |
5 | |
10 | |
6 | #include "EXTERN.h" |
11 | #include "EXTERN.h" |
7 | #include "perl.h" |
12 | #include "perl.h" |
8 | #include "XSUB.h" |
13 | #include "XSUB.h" |
9 | #include "perliol.h" |
14 | #include "perliol.h" |
10 | |
15 | |
11 | #include "patchlevel.h" |
16 | #include "schmorp.h" |
12 | |
17 | |
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18 | #include <stddef.h> |
13 | #include <stdio.h> |
19 | #include <stdio.h> |
14 | #include <errno.h> |
20 | #include <errno.h> |
15 | #include <assert.h> |
21 | #include <assert.h> |
16 | |
22 | |
17 | #ifdef WIN32 |
23 | #ifndef SVs_PADSTALE |
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24 | # define SVs_PADSTALE 0 |
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25 | #endif |
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26 | |
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27 | #if defined(_WIN32) |
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28 | # undef HAS_GETTIMEOFDAY |
18 | # undef setjmp |
29 | # undef setjmp |
19 | # undef longjmp |
30 | # undef longjmp |
20 | # undef _exit |
31 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
32 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
33 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
34 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
35 | #endif |
25 | |
36 | |
26 | #ifdef HAVE_MMAP |
37 | #ifdef HAVE_MMAP |
… | |
… | |
51 | #endif |
62 | #endif |
52 | |
63 | |
53 | /* the maximum number of idle cctx that will be pooled */ |
64 | /* the maximum number of idle cctx that will be pooled */ |
54 | static int cctx_max_idle = 4; |
65 | static int cctx_max_idle = 4; |
55 | |
66 | |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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57 | (PERL_REVISION > (a) \ |
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58 | || (PERL_REVISION == (a) \ |
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59 | && (PERL_VERSION > (b) \ |
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60 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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61 | |
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62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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63 | # ifndef PL_ppaddr |
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64 | # define PL_ppaddr ppaddr |
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65 | # endif |
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66 | # ifndef call_sv |
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67 | # define call_sv perl_call_sv |
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68 | # endif |
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69 | # ifndef get_sv |
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70 | # define get_sv perl_get_sv |
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71 | # endif |
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72 | # ifndef get_cv |
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73 | # define get_cv perl_get_cv |
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74 | # endif |
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75 | # ifndef IS_PADGV |
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76 | # define IS_PADGV(v) 0 |
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77 | # endif |
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78 | # ifndef IS_PADCONST |
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79 | # define IS_PADCONST(v) 0 |
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80 | # endif |
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81 | #endif |
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82 | |
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83 | /* 5.11 */ |
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84 | #ifndef CxHASARGS |
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85 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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86 | #endif |
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87 | |
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88 | /* 5.10.0 */ |
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89 | #ifndef SvREFCNT_inc_NN |
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90 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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91 | #endif |
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92 | |
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93 | /* 5.8.8 */ |
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94 | #ifndef GV_NOTQUAL |
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95 | # define GV_NOTQUAL 0 |
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96 | #endif |
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97 | #ifndef newSV |
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98 | # define newSV(l) NEWSV(0,l) |
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99 | #endif |
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100 | |
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101 | /* 5.8.7 */ |
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102 | #ifndef SvRV_set |
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103 | # define SvRV_set(s,v) SvRV(s) = (v) |
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104 | #endif |
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105 | |
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106 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
67 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
107 | # undef CORO_STACKGUARD |
68 | # undef CORO_STACKGUARD |
108 | #endif |
69 | #endif |
109 | |
70 | |
110 | #ifndef CORO_STACKGUARD |
71 | #ifndef CORO_STACKGUARD |
… | |
… | |
117 | #endif |
78 | #endif |
118 | |
79 | |
119 | /* The next macros try to return the current stack pointer, in an as |
80 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
81 | * portable way as possible. */ |
121 | #if __GNUC__ >= 4 |
82 | #if __GNUC__ >= 4 |
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83 | # define dSTACKLEVEL int stacklevel_dummy |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
84 | # define STACKLEVEL __builtin_frame_address (0) |
123 | #else |
85 | #else |
124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
86 | # define dSTACKLEVEL volatile void *stacklevel |
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87 | # define STACKLEVEL ((void *)&stacklevel) |
125 | #endif |
88 | #endif |
126 | |
89 | |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
90 | #define IN_DESTRUCT PL_dirty |
128 | |
91 | |
129 | #if __GNUC__ >= 3 |
92 | #if __GNUC__ >= 3 |
130 | # define attribute(x) __attribute__(x) |
93 | # define attribute(x) __attribute__(x) |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
94 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
132 | # define INLINE static inline |
95 | # define INLINE static inline |
133 | #else |
96 | #else |
134 | # define attribute(x) |
97 | # define attribute(x) |
135 | # define expect(expr,value) (expr) |
98 | # define expect(expr,value) (expr) |
136 | # define INLINE static |
99 | # define INLINE static |
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140 | #define expect_true(expr) expect ((expr) != 0, 1) |
103 | #define expect_true(expr) expect ((expr) != 0, 1) |
141 | |
104 | |
142 | #define NOINLINE attribute ((noinline)) |
105 | #define NOINLINE attribute ((noinline)) |
143 | |
106 | |
144 | #include "CoroAPI.h" |
107 | #include "CoroAPI.h" |
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108 | #define GCoroAPI (&coroapi) /* very sneaky */ |
145 | |
109 | |
146 | #ifdef USE_ITHREADS |
110 | #ifdef USE_ITHREADS |
147 | |
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148 | static perl_mutex coro_lock; |
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149 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
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150 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
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151 | # if CORO_PTHREAD |
111 | # if CORO_PTHREAD |
152 | static void *coro_thx; |
112 | static void *coro_thx; |
153 | # endif |
113 | # endif |
154 | |
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155 | #else |
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156 | |
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157 | # define LOCK (void)0 |
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158 | # define UNLOCK (void)0 |
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159 | |
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160 | #endif |
114 | #endif |
161 | |
115 | |
162 | # undef LOCK |
116 | #ifdef __linux |
163 | # define LOCK (void)0 |
117 | # include <time.h> /* for timespec */ |
164 | # undef UNLOCK |
118 | # include <syscall.h> /* for SYS_* */ |
165 | # define UNLOCK (void)0 |
119 | # ifdef SYS_clock_gettime |
166 | |
120 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
167 | /* helper storage struct for Coro::AIO */ |
121 | # define CORO_CLOCK_MONOTONIC 1 |
168 | struct io_state |
122 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
169 | { |
123 | # endif |
170 | AV *res; |
124 | #endif |
171 | int errorno; |
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172 | I32 laststype; /* U16 in 5.10.0 */ |
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173 | int laststatval; |
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174 | Stat_t statcache; |
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175 | }; |
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176 | |
125 | |
177 | static double (*nvtime)(); /* so why doesn't it take void? */ |
126 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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127 | static void (*u2time)(pTHX_ UV ret[2]); |
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128 | |
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129 | /* we hijack an hopefully unused CV flag for our purposes */ |
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130 | #define CVf_SLF 0x4000 |
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131 | static OP *pp_slf (pTHX); |
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132 | static void slf_destroy (pTHX_ struct coro *coro); |
178 | |
133 | |
179 | static U32 cctx_gen; |
134 | static U32 cctx_gen; |
180 | static size_t cctx_stacksize = CORO_STACKSIZE; |
135 | static size_t cctx_stacksize = CORO_STACKSIZE; |
181 | static struct CoroAPI coroapi; |
136 | static struct CoroAPI coroapi; |
182 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
137 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
183 | static JMPENV *main_top_env; |
138 | static JMPENV *main_top_env; |
184 | static HV *coro_state_stash, *coro_stash; |
139 | static HV *coro_state_stash, *coro_stash; |
185 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
140 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
186 | static volatile struct coro *transfer_next; |
141 | |
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142 | static AV *av_destroy; /* destruction queue */ |
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143 | static SV *sv_manager; /* the manager coro */ |
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144 | static SV *sv_idle; /* $Coro::idle */ |
187 | |
145 | |
188 | static GV *irsgv; /* $/ */ |
146 | static GV *irsgv; /* $/ */ |
189 | static GV *stdoutgv; /* *STDOUT */ |
147 | static GV *stdoutgv; /* *STDOUT */ |
190 | static SV *rv_diehook; |
148 | static SV *rv_diehook; |
191 | static SV *rv_warnhook; |
149 | static SV *rv_warnhook; |
192 | static HV *hv_sig; /* %SIG */ |
150 | static HV *hv_sig; /* %SIG */ |
193 | |
151 | |
194 | /* async_pool helper stuff */ |
152 | /* async_pool helper stuff */ |
195 | static SV *sv_pool_rss; |
153 | static SV *sv_pool_rss; |
196 | static SV *sv_pool_size; |
154 | static SV *sv_pool_size; |
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155 | static SV *sv_async_pool_idle; /* description string */ |
197 | static AV *av_async_pool; |
156 | static AV *av_async_pool; /* idle pool */ |
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157 | static SV *sv_Coro; /* class string */ |
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158 | static CV *cv_pool_handler; |
198 | |
159 | |
199 | /* Coro::AnyEvent */ |
160 | /* Coro::AnyEvent */ |
200 | static SV *sv_activity; |
161 | static SV *sv_activity; |
201 | |
162 | |
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163 | /* enable processtime/realtime profiling */ |
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164 | static char enable_times; |
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165 | typedef U32 coro_ts[2]; |
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166 | static coro_ts time_real, time_cpu; |
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167 | static char times_valid; |
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168 | |
202 | static struct coro_cctx *cctx_first; |
169 | static struct coro_cctx *cctx_first; |
203 | static int cctx_count, cctx_idle; |
170 | static int cctx_count, cctx_idle; |
204 | |
171 | |
205 | enum { |
172 | enum |
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173 | { |
206 | CC_MAPPED = 0x01, |
174 | CC_MAPPED = 0x01, |
207 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
175 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
208 | CC_TRACE = 0x04, |
176 | CC_TRACE = 0x04, |
209 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
177 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
210 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
178 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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231 | int valgrind_id; |
199 | int valgrind_id; |
232 | #endif |
200 | #endif |
233 | unsigned char flags; |
201 | unsigned char flags; |
234 | } coro_cctx; |
202 | } coro_cctx; |
235 | |
203 | |
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204 | static coro_cctx *cctx_current; /* the currently running cctx */ |
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205 | |
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206 | /*****************************************************************************/ |
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207 | |
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208 | static MGVTBL coro_state_vtbl; |
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209 | |
236 | enum { |
210 | enum |
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211 | { |
237 | CF_RUNNING = 0x0001, /* coroutine is running */ |
212 | CF_RUNNING = 0x0001, /* coroutine is running */ |
238 | CF_READY = 0x0002, /* coroutine is ready */ |
213 | CF_READY = 0x0002, /* coroutine is ready */ |
239 | CF_NEW = 0x0004, /* has never been switched to */ |
214 | CF_NEW = 0x0004, /* has never been switched to */ |
240 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
215 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
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216 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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217 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
241 | }; |
218 | }; |
242 | |
219 | |
243 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
220 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
244 | typedef struct |
221 | typedef struct |
245 | { |
222 | { |
246 | SV *defsv; |
223 | SV *defsv; |
247 | AV *defav; |
224 | AV *defav; |
248 | SV *errsv; |
225 | SV *errsv; |
249 | SV *irsgv; |
226 | SV *irsgv; |
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227 | HV *hinthv; |
250 | #define VAR(name,type) type name; |
228 | #define VAR(name,type) type name; |
251 | # include "state.h" |
229 | # include "state.h" |
252 | #undef VAR |
230 | #undef VAR |
253 | } perl_slots; |
231 | } perl_slots; |
254 | |
232 | |
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233 | // how many context stack entries do we need for perl_slots |
255 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
234 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
256 | |
235 | |
257 | /* this is a structure representing a perl-level coroutine */ |
236 | /* this is a structure representing a perl-level coroutine */ |
258 | struct coro { |
237 | struct coro |
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238 | { |
259 | /* the C coroutine allocated to this perl coroutine, if any */ |
239 | /* the C coroutine allocated to this perl coroutine, if any */ |
260 | coro_cctx *cctx; |
240 | coro_cctx *cctx; |
261 | |
241 | |
262 | /* process data */ |
242 | /* ready queue */ |
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243 | struct coro *next_ready; |
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244 | |
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245 | /* state data */ |
263 | struct CoroSLF slf_frame; /* saved slf frame */ |
246 | struct CoroSLF slf_frame; /* saved slf frame */ |
264 | AV *mainstack; |
247 | AV *mainstack; |
265 | perl_slots *slot; /* basically the saved sp */ |
248 | perl_slots *slot; /* basically the saved sp */ |
266 | |
249 | |
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250 | CV *startcv; /* the CV to execute */ |
267 | AV *args; /* data associated with this coroutine (initial args) */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
268 | int refcnt; /* coroutines are refcounted, yes */ |
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269 | int flags; /* CF_ flags */ |
252 | int flags; /* CF_ flags */ |
270 | HV *hv; /* the perl hash associated with this coro, if any */ |
253 | HV *hv; /* the perl hash associated with this coro, if any */ |
271 | |
254 | |
272 | /* statistics */ |
255 | /* statistics */ |
273 | int usecount; /* number of transfers to this coro */ |
256 | int usecount; /* number of transfers to this coro */ |
274 | |
257 | |
275 | /* coro process data */ |
258 | /* coro process data */ |
276 | int prio; |
259 | int prio; |
277 | SV *throw; /* exception to be thrown */ |
260 | SV *except; /* exception to be thrown */ |
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261 | SV *rouse_cb; /* last rouse callback */ |
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262 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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263 | AV *status; /* the exit status list */ |
278 | |
264 | |
279 | /* async_pool */ |
265 | /* async_pool */ |
280 | SV *saved_deffh; |
266 | SV *saved_deffh; |
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267 | SV *invoke_cb; |
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268 | AV *invoke_av; |
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269 | |
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270 | /* on_enter/on_leave */ |
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271 | AV *on_enter; |
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272 | AV *on_leave; |
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273 | |
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274 | /* swap_sv */ |
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275 | AV *swap_sv; |
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276 | |
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277 | /* times */ |
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278 | coro_ts t_cpu, t_real; |
281 | |
279 | |
282 | /* linked list */ |
280 | /* linked list */ |
283 | struct coro *next, *prev; |
281 | struct coro *next, *prev; |
284 | }; |
282 | }; |
285 | |
283 | |
286 | typedef struct coro *Coro__State; |
284 | typedef struct coro *Coro__State; |
287 | typedef struct coro *Coro__State_or_hashref; |
285 | typedef struct coro *Coro__State_or_hashref; |
288 | |
286 | |
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287 | /* the following variables are effectively part of the perl context */ |
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288 | /* and get copied between struct coro and these variables */ |
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289 | /* the main reason we don't support windows process emulation */ |
289 | static struct CoroSLF slf_frame; /* the current slf frame */ |
290 | static struct CoroSLF slf_frame; /* the current slf frame */ |
290 | |
291 | |
291 | /** Coro ********************************************************************/ |
292 | /** Coro ********************************************************************/ |
292 | |
293 | |
293 | #define PRIO_MAX 3 |
294 | #define CORO_PRIO_MAX 3 |
294 | #define PRIO_HIGH 1 |
295 | #define CORO_PRIO_HIGH 1 |
295 | #define PRIO_NORMAL 0 |
296 | #define CORO_PRIO_NORMAL 0 |
296 | #define PRIO_LOW -1 |
297 | #define CORO_PRIO_LOW -1 |
297 | #define PRIO_IDLE -3 |
298 | #define CORO_PRIO_IDLE -3 |
298 | #define PRIO_MIN -4 |
299 | #define CORO_PRIO_MIN -4 |
299 | |
300 | |
300 | /* for Coro.pm */ |
301 | /* for Coro.pm */ |
301 | static SV *coro_current; |
302 | static SV *coro_current; |
302 | static SV *coro_readyhook; |
303 | static SV *coro_readyhook; |
303 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
304 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
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305 | static CV *cv_coro_run; |
304 | static struct coro *coro_first; |
306 | static struct coro *coro_first; |
305 | #define coro_nready coroapi.nready |
307 | #define coro_nready coroapi.nready |
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308 | |
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309 | /** Coro::Select ************************************************************/ |
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310 | |
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311 | static OP *(*coro_old_pp_sselect) (pTHX); |
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312 | static SV *coro_select_select; |
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313 | |
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314 | /* horrible hack, but if it works... */ |
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315 | static OP * |
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316 | coro_pp_sselect (pTHX) |
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317 | { |
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318 | dSP; |
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319 | PUSHMARK (SP - 4); /* fake argument list */ |
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320 | XPUSHs (coro_select_select); |
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321 | PUTBACK; |
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322 | |
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323 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
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324 | PL_op->op_flags |= OPf_STACKED; |
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325 | PL_op->op_private = 0; |
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326 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
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327 | } |
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328 | |
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329 | /** time stuff **************************************************************/ |
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330 | |
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331 | #ifdef HAS_GETTIMEOFDAY |
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332 | |
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333 | static void |
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334 | coro_u2time (pTHX_ UV ret[2]) |
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335 | { |
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336 | struct timeval tv; |
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337 | gettimeofday (&tv, 0); |
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338 | |
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339 | ret [0] = tv.tv_sec; |
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340 | ret [1] = tv.tv_usec; |
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341 | } |
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342 | |
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343 | static double |
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344 | coro_nvtime () |
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345 | { |
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346 | struct timeval tv; |
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347 | gettimeofday (&tv, 0); |
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348 | |
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349 | return tv.tv_sec + tv.tv_usec * 1e-6; |
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350 | } |
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351 | |
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352 | static void |
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353 | time_init (pTHX) |
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354 | { |
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355 | nvtime = coro_nvtime; |
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356 | u2time = coro_u2time; |
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357 | } |
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358 | |
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359 | #else |
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360 | |
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361 | static void |
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362 | time_init (pTHX) |
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363 | { |
|
|
364 | SV **svp; |
|
|
365 | |
|
|
366 | require_pv ("Time/HiRes.pm"); |
|
|
367 | |
|
|
368 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
369 | |
|
|
370 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
|
|
371 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
|
|
372 | |
|
|
373 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
374 | |
|
|
375 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
376 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
377 | } |
|
|
378 | |
|
|
379 | #endif |
306 | |
380 | |
307 | /** lowlevel stuff **********************************************************/ |
381 | /** lowlevel stuff **********************************************************/ |
308 | |
382 | |
309 | static SV * |
383 | static SV * |
310 | coro_get_sv (pTHX_ const char *name, int create) |
384 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
334 | get_hv (name, create); |
408 | get_hv (name, create); |
335 | #endif |
409 | #endif |
336 | return get_hv (name, create); |
410 | return get_hv (name, create); |
337 | } |
411 | } |
338 | |
412 | |
|
|
413 | INLINE void |
|
|
414 | coro_times_update () |
|
|
415 | { |
|
|
416 | #ifdef coro_clock_gettime |
|
|
417 | struct timespec ts; |
|
|
418 | |
|
|
419 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
420 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
421 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
422 | |
|
|
423 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
424 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
425 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
426 | #else |
|
|
427 | dTHX; |
|
|
428 | UV tv[2]; |
|
|
429 | |
|
|
430 | u2time (aTHX_ tv); |
|
|
431 | time_real [0] = tv [0]; |
|
|
432 | time_real [1] = tv [1] * 1000; |
|
|
433 | #endif |
|
|
434 | } |
|
|
435 | |
|
|
436 | INLINE void |
|
|
437 | coro_times_add (struct coro *c) |
|
|
438 | { |
|
|
439 | c->t_real [1] += time_real [1]; |
|
|
440 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
441 | c->t_real [0] += time_real [0]; |
|
|
442 | |
|
|
443 | c->t_cpu [1] += time_cpu [1]; |
|
|
444 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
445 | c->t_cpu [0] += time_cpu [0]; |
|
|
446 | } |
|
|
447 | |
|
|
448 | INLINE void |
|
|
449 | coro_times_sub (struct coro *c) |
|
|
450 | { |
|
|
451 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
452 | c->t_real [1] -= time_real [1]; |
|
|
453 | c->t_real [0] -= time_real [0]; |
|
|
454 | |
|
|
455 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
456 | c->t_cpu [1] -= time_cpu [1]; |
|
|
457 | c->t_cpu [0] -= time_cpu [0]; |
|
|
458 | } |
|
|
459 | |
|
|
460 | /*****************************************************************************/ |
|
|
461 | /* magic glue */ |
|
|
462 | |
|
|
463 | #define CORO_MAGIC_type_cv 26 |
|
|
464 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
465 | |
|
|
466 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
467 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
468 | ? SvMAGIC (sv) \ |
|
|
469 | : mg_find (sv, type)) |
|
|
470 | |
|
|
471 | #define CORO_MAGIC(sv, type) \ |
|
|
472 | (expect_true (SvMAGIC (sv)) \ |
|
|
473 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
474 | : 0) |
|
|
475 | |
|
|
476 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
477 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
478 | |
|
|
479 | INLINE MAGIC * |
|
|
480 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
481 | { |
|
|
482 | MAGIC *mg; |
|
|
483 | |
|
|
484 | if (expect_true ( |
|
|
485 | SvTYPE (coro) == SVt_PVHV |
|
|
486 | && (mg = CORO_MAGIC_state (coro)) |
|
|
487 | && mg->mg_virtual == &coro_state_vtbl |
|
|
488 | )) |
|
|
489 | return mg; |
|
|
490 | |
|
|
491 | return 0; |
|
|
492 | } |
|
|
493 | |
|
|
494 | INLINE struct coro * |
|
|
495 | SvSTATE_ (pTHX_ SV *coro) |
|
|
496 | { |
|
|
497 | MAGIC *mg; |
|
|
498 | |
|
|
499 | if (SvROK (coro)) |
|
|
500 | coro = SvRV (coro); |
|
|
501 | |
|
|
502 | mg = SvSTATEhv_p (aTHX_ coro); |
|
|
503 | if (!mg) |
|
|
504 | croak ("Coro::State object required"); |
|
|
505 | |
|
|
506 | return (struct coro *)mg->mg_ptr; |
|
|
507 | } |
|
|
508 | |
|
|
509 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
510 | |
|
|
511 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
512 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
513 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
514 | |
|
|
515 | /*****************************************************************************/ |
|
|
516 | /* padlist management and caching */ |
|
|
517 | |
339 | static AV * |
518 | static AV * |
340 | coro_clone_padlist (pTHX_ CV *cv) |
519 | coro_derive_padlist (pTHX_ CV *cv) |
341 | { |
520 | { |
342 | AV *padlist = CvPADLIST (cv); |
521 | AV *padlist = CvPADLIST (cv); |
343 | AV *newpadlist, *newpad; |
522 | AV *newpadlist, *newpad; |
344 | |
523 | |
345 | newpadlist = newAV (); |
524 | newpadlist = newAV (); |
… | |
… | |
350 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
529 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
351 | #endif |
530 | #endif |
352 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
531 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
353 | --AvFILLp (padlist); |
532 | --AvFILLp (padlist); |
354 | |
533 | |
355 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
534 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
356 | av_store (newpadlist, 1, (SV *)newpad); |
535 | av_store (newpadlist, 1, (SV *)newpad); |
357 | |
536 | |
358 | return newpadlist; |
537 | return newpadlist; |
359 | } |
538 | } |
360 | |
539 | |
361 | static void |
540 | static void |
362 | free_padlist (pTHX_ AV *padlist) |
541 | free_padlist (pTHX_ AV *padlist) |
363 | { |
542 | { |
364 | /* may be during global destruction */ |
543 | /* may be during global destruction */ |
365 | if (SvREFCNT (padlist)) |
544 | if (!IN_DESTRUCT) |
366 | { |
545 | { |
367 | I32 i = AvFILLp (padlist); |
546 | I32 i = AvFILLp (padlist); |
368 | while (i >= 0) |
547 | |
|
|
548 | while (i > 0) /* special-case index 0 */ |
369 | { |
549 | { |
370 | SV **svp = av_fetch (padlist, i--, FALSE); |
550 | /* we try to be extra-careful here */ |
371 | if (svp) |
551 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
372 | { |
552 | I32 j = AvFILLp (av); |
373 | SV *sv; |
553 | |
374 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
554 | while (j >= 0) |
|
|
555 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
556 | |
|
|
557 | AvFILLp (av) = -1; |
375 | SvREFCNT_dec (sv); |
558 | SvREFCNT_dec (av); |
376 | |
|
|
377 | SvREFCNT_dec (*svp); |
|
|
378 | } |
|
|
379 | } |
559 | } |
380 | |
560 | |
|
|
561 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
562 | |
|
|
563 | AvFILLp (padlist) = -1; |
381 | SvREFCNT_dec ((SV*)padlist); |
564 | SvREFCNT_dec ((SV*)padlist); |
382 | } |
565 | } |
383 | } |
566 | } |
384 | |
567 | |
385 | static int |
568 | static int |
386 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
569 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
387 | { |
570 | { |
388 | AV *padlist; |
571 | AV *padlist; |
389 | AV *av = (AV *)mg->mg_obj; |
572 | AV *av = (AV *)mg->mg_obj; |
|
|
573 | |
|
|
574 | /* perl manages to free our internal AV and _then_ call us */ |
|
|
575 | if (IN_DESTRUCT) |
|
|
576 | return 0; |
390 | |
577 | |
391 | /* casting is fun. */ |
578 | /* casting is fun. */ |
392 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
579 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
393 | free_padlist (aTHX_ padlist); |
580 | free_padlist (aTHX_ padlist); |
394 | |
581 | |
395 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
582 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
396 | |
583 | |
397 | return 0; |
584 | return 0; |
398 | } |
585 | } |
399 | |
|
|
400 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
401 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
402 | |
586 | |
403 | static MGVTBL coro_cv_vtbl = { |
587 | static MGVTBL coro_cv_vtbl = { |
404 | 0, 0, 0, 0, |
588 | 0, 0, 0, 0, |
405 | coro_cv_free |
589 | coro_cv_free |
406 | }; |
590 | }; |
407 | |
|
|
408 | #define CORO_MAGIC(sv, type) \ |
|
|
409 | SvMAGIC (sv) \ |
|
|
410 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
411 | ? SvMAGIC (sv) \ |
|
|
412 | : mg_find (sv, type) \ |
|
|
413 | : 0 |
|
|
414 | |
|
|
415 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
416 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
417 | |
|
|
418 | INLINE struct coro * |
|
|
419 | SvSTATE_ (pTHX_ SV *coro) |
|
|
420 | { |
|
|
421 | HV *stash; |
|
|
422 | MAGIC *mg; |
|
|
423 | |
|
|
424 | if (SvROK (coro)) |
|
|
425 | coro = SvRV (coro); |
|
|
426 | |
|
|
427 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
428 | croak ("Coro::State object required"); |
|
|
429 | |
|
|
430 | stash = SvSTASH (coro); |
|
|
431 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
432 | { |
|
|
433 | /* very slow, but rare, check */ |
|
|
434 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
435 | croak ("Coro::State object required"); |
|
|
436 | } |
|
|
437 | |
|
|
438 | mg = CORO_MAGIC_state (coro); |
|
|
439 | return (struct coro *)mg->mg_ptr; |
|
|
440 | } |
|
|
441 | |
|
|
442 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
443 | |
591 | |
444 | /* the next two functions merely cache the padlists */ |
592 | /* the next two functions merely cache the padlists */ |
445 | static void |
593 | static void |
446 | get_padlist (pTHX_ CV *cv) |
594 | get_padlist (pTHX_ CV *cv) |
447 | { |
595 | { |
… | |
… | |
453 | else |
601 | else |
454 | { |
602 | { |
455 | #if CORO_PREFER_PERL_FUNCTIONS |
603 | #if CORO_PREFER_PERL_FUNCTIONS |
456 | /* this is probably cleaner? but also slower! */ |
604 | /* this is probably cleaner? but also slower! */ |
457 | /* in practise, it seems to be less stable */ |
605 | /* in practise, it seems to be less stable */ |
458 | CV *cp = Perl_cv_clone (cv); |
606 | CV *cp = Perl_cv_clone (aTHX_ cv); |
459 | CvPADLIST (cv) = CvPADLIST (cp); |
607 | CvPADLIST (cv) = CvPADLIST (cp); |
460 | CvPADLIST (cp) = 0; |
608 | CvPADLIST (cp) = 0; |
461 | SvREFCNT_dec (cp); |
609 | SvREFCNT_dec (cp); |
462 | #else |
610 | #else |
463 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
611 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
464 | #endif |
612 | #endif |
465 | } |
613 | } |
466 | } |
614 | } |
467 | |
615 | |
468 | static void |
616 | static void |
… | |
… | |
475 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
623 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
476 | |
624 | |
477 | av = (AV *)mg->mg_obj; |
625 | av = (AV *)mg->mg_obj; |
478 | |
626 | |
479 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
627 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
480 | av_extend (av, AvMAX (av) + 1); |
628 | av_extend (av, AvFILLp (av) + 1); |
481 | |
629 | |
482 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
630 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
483 | } |
631 | } |
484 | |
632 | |
485 | /** load & save, init *******************************************************/ |
633 | /** load & save, init *******************************************************/ |
|
|
634 | |
|
|
635 | /* swap sv heads, at least logically */ |
|
|
636 | static void |
|
|
637 | swap_svs (pTHX_ Coro__State c) |
|
|
638 | { |
|
|
639 | int i; |
|
|
640 | |
|
|
641 | for (i = 0; i <= AvFILLp (c->swap_sv); ) |
|
|
642 | { |
|
|
643 | SV *a = AvARRAY (c->swap_sv)[i++]; |
|
|
644 | SV *b = AvARRAY (c->swap_sv)[i++]; |
|
|
645 | |
|
|
646 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
647 | SV tmp; |
|
|
648 | |
|
|
649 | /* swap sv_any */ |
|
|
650 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
651 | |
|
|
652 | /* swap sv_flags */ |
|
|
653 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
654 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
655 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
656 | |
|
|
657 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
658 | /* perl 5.10 complicates this _quite_ a bit, but it also is |
|
|
659 | * much faster, so no quarrels here. alternatively, we could |
|
|
660 | * sv_upgrade to avoid this. |
|
|
661 | */ |
|
|
662 | { |
|
|
663 | /* swap sv_u */ |
|
|
664 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
665 | |
|
|
666 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
667 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
668 | */ |
|
|
669 | #define svany_in_head(type) \ |
|
|
670 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
671 | |
|
|
672 | if (svany_in_head (SvTYPE (a))) |
|
|
673 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
674 | |
|
|
675 | if (svany_in_head (SvTYPE (b))) |
|
|
676 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
677 | } |
|
|
678 | #endif |
|
|
679 | } |
|
|
680 | } |
|
|
681 | |
|
|
682 | #define SWAP_SVS(coro) \ |
|
|
683 | if (expect_false ((coro)->swap_sv)) \ |
|
|
684 | swap_svs (aTHX_ (coro)) |
|
|
685 | |
|
|
686 | static void |
|
|
687 | on_enterleave_call (pTHX_ SV *cb); |
486 | |
688 | |
487 | static void |
689 | static void |
488 | load_perl (pTHX_ Coro__State c) |
690 | load_perl (pTHX_ Coro__State c) |
489 | { |
691 | { |
490 | perl_slots *slot = c->slot; |
692 | perl_slots *slot = c->slot; |
491 | c->slot = 0; |
693 | c->slot = 0; |
492 | |
694 | |
493 | PL_mainstack = c->mainstack; |
695 | PL_mainstack = c->mainstack; |
494 | |
696 | |
495 | GvSV (PL_defgv) = slot->defsv; |
697 | GvSV (PL_defgv) = slot->defsv; |
496 | GvAV (PL_defgv) = slot->defav; |
698 | GvAV (PL_defgv) = slot->defav; |
497 | GvSV (PL_errgv) = slot->errsv; |
699 | GvSV (PL_errgv) = slot->errsv; |
498 | GvSV (irsgv) = slot->irsgv; |
700 | GvSV (irsgv) = slot->irsgv; |
|
|
701 | GvHV (PL_hintgv) = slot->hinthv; |
499 | |
702 | |
500 | #define VAR(name,type) PL_ ## name = slot->name; |
703 | #define VAR(name,type) PL_ ## name = slot->name; |
501 | # include "state.h" |
704 | # include "state.h" |
502 | #undef VAR |
705 | #undef VAR |
503 | |
706 | |
… | |
… | |
515 | } |
718 | } |
516 | |
719 | |
517 | PUTBACK; |
720 | PUTBACK; |
518 | } |
721 | } |
519 | |
722 | |
520 | slf_frame = c->slf_frame; |
723 | slf_frame = c->slf_frame; |
|
|
724 | CORO_THROW = c->except; |
|
|
725 | |
|
|
726 | if (expect_false (enable_times)) |
|
|
727 | { |
|
|
728 | if (expect_false (!times_valid)) |
|
|
729 | coro_times_update (); |
|
|
730 | |
|
|
731 | coro_times_sub (c); |
|
|
732 | } |
|
|
733 | |
|
|
734 | if (expect_false (c->on_enter)) |
|
|
735 | { |
|
|
736 | int i; |
|
|
737 | |
|
|
738 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
739 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
740 | } |
|
|
741 | |
|
|
742 | SWAP_SVS (c); |
521 | } |
743 | } |
522 | |
744 | |
523 | static void |
745 | static void |
524 | save_perl (pTHX_ Coro__State c) |
746 | save_perl (pTHX_ Coro__State c) |
525 | { |
747 | { |
|
|
748 | SWAP_SVS (c); |
|
|
749 | |
|
|
750 | if (expect_false (c->on_leave)) |
|
|
751 | { |
|
|
752 | int i; |
|
|
753 | |
|
|
754 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
755 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
756 | } |
|
|
757 | |
|
|
758 | times_valid = 0; |
|
|
759 | |
|
|
760 | if (expect_false (enable_times)) |
|
|
761 | { |
|
|
762 | coro_times_update (); times_valid = 1; |
|
|
763 | coro_times_add (c); |
|
|
764 | } |
|
|
765 | |
|
|
766 | c->except = CORO_THROW; |
526 | c->slf_frame = slf_frame; |
767 | c->slf_frame = slf_frame; |
527 | |
768 | |
528 | { |
769 | { |
529 | dSP; |
770 | dSP; |
530 | I32 cxix = cxstack_ix; |
771 | I32 cxix = cxstack_ix; |
… | |
… | |
542 | { |
783 | { |
543 | while (expect_true (cxix >= 0)) |
784 | while (expect_true (cxix >= 0)) |
544 | { |
785 | { |
545 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
786 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
546 | |
787 | |
547 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
788 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
548 | { |
789 | { |
549 | CV *cv = cx->blk_sub.cv; |
790 | CV *cv = cx->blk_sub.cv; |
550 | |
791 | |
551 | if (expect_true (CvDEPTH (cv))) |
792 | if (expect_true (CvDEPTH (cv))) |
552 | { |
793 | { |
… | |
… | |
571 | |
812 | |
572 | PUTBACK; |
813 | PUTBACK; |
573 | } |
814 | } |
574 | |
815 | |
575 | /* allocate some space on the context stack for our purposes */ |
816 | /* allocate some space on the context stack for our purposes */ |
576 | /* we manually unroll here, as usually 2 slots is enough */ |
817 | if (expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max)) |
577 | if (SLOT_COUNT >= 1) CXINC; |
|
|
578 | if (SLOT_COUNT >= 2) CXINC; |
|
|
579 | if (SLOT_COUNT >= 3) CXINC; |
|
|
580 | { |
818 | { |
581 | int i; |
819 | unsigned int i; |
|
|
820 | |
582 | for (i = 3; i < SLOT_COUNT; ++i) |
821 | for (i = 0; i < SLOT_COUNT; ++i) |
583 | CXINC; |
822 | CXINC; |
584 | } |
823 | |
585 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
824 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
825 | } |
586 | |
826 | |
587 | c->mainstack = PL_mainstack; |
827 | c->mainstack = PL_mainstack; |
588 | |
828 | |
589 | { |
829 | { |
590 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
830 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
591 | |
831 | |
592 | slot->defav = GvAV (PL_defgv); |
832 | slot->defav = GvAV (PL_defgv); |
593 | slot->defsv = DEFSV; |
833 | slot->defsv = DEFSV; |
594 | slot->errsv = ERRSV; |
834 | slot->errsv = ERRSV; |
595 | slot->irsgv = GvSV (irsgv); |
835 | slot->irsgv = GvSV (irsgv); |
|
|
836 | slot->hinthv = GvHV (PL_hintgv); |
596 | |
837 | |
597 | #define VAR(name,type) slot->name = PL_ ## name; |
838 | #define VAR(name,type) slot->name = PL_ ## name; |
598 | # include "state.h" |
839 | # include "state.h" |
599 | #undef VAR |
840 | #undef VAR |
600 | } |
841 | } |
… | |
… | |
605 | * of perl.c:init_stacks, except that it uses less memory |
846 | * of perl.c:init_stacks, except that it uses less memory |
606 | * on the (sometimes correct) assumption that coroutines do |
847 | * on the (sometimes correct) assumption that coroutines do |
607 | * not usually need a lot of stackspace. |
848 | * not usually need a lot of stackspace. |
608 | */ |
849 | */ |
609 | #if CORO_PREFER_PERL_FUNCTIONS |
850 | #if CORO_PREFER_PERL_FUNCTIONS |
610 | # define coro_init_stacks init_stacks |
851 | # define coro_init_stacks(thx) init_stacks () |
611 | #else |
852 | #else |
612 | static void |
853 | static void |
613 | coro_init_stacks (pTHX) |
854 | coro_init_stacks (pTHX) |
614 | { |
855 | { |
615 | PL_curstackinfo = new_stackinfo(32, 8); |
856 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
616 | PL_curstackinfo->si_type = PERLSI_MAIN; |
857 | PL_curstackinfo->si_type = PERLSI_MAIN; |
617 | PL_curstack = PL_curstackinfo->si_stack; |
858 | PL_curstack = PL_curstackinfo->si_stack; |
618 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
859 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
619 | |
860 | |
620 | PL_stack_base = AvARRAY(PL_curstack); |
861 | PL_stack_base = AvARRAY(PL_curstack); |
… | |
… | |
678 | #if !PERL_VERSION_ATLEAST (5,10,0) |
919 | #if !PERL_VERSION_ATLEAST (5,10,0) |
679 | Safefree (PL_retstack); |
920 | Safefree (PL_retstack); |
680 | #endif |
921 | #endif |
681 | } |
922 | } |
682 | |
923 | |
|
|
924 | #define CORO_RSS \ |
|
|
925 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
926 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
927 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
928 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
929 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
930 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
931 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
932 | |
683 | static size_t |
933 | static size_t |
684 | coro_rss (pTHX_ struct coro *coro) |
934 | coro_rss (pTHX_ struct coro *coro) |
685 | { |
935 | { |
686 | size_t rss = sizeof (*coro); |
936 | size_t rss = sizeof (*coro); |
687 | |
937 | |
688 | if (coro->mainstack) |
938 | if (coro->mainstack) |
689 | { |
939 | { |
690 | perl_slots tmp_slot; |
|
|
691 | perl_slots *slot; |
|
|
692 | |
|
|
693 | if (coro->flags & CF_RUNNING) |
940 | if (coro->flags & CF_RUNNING) |
694 | { |
941 | { |
695 | slot = &tmp_slot; |
942 | #define SYM(sym) PL_ ## sym |
696 | |
943 | CORO_RSS; |
697 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
698 | # include "state.h" |
|
|
699 | #undef VAR |
944 | #undef SYM |
700 | } |
945 | } |
701 | else |
946 | else |
702 | slot = coro->slot; |
|
|
703 | |
|
|
704 | if (slot) |
|
|
705 | { |
947 | { |
706 | rss += sizeof (slot->curstackinfo); |
948 | #define SYM(sym) coro->slot->sym |
707 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
949 | CORO_RSS; |
708 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
950 | #undef SYM |
709 | rss += slot->tmps_max * sizeof (SV *); |
|
|
710 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
711 | rss += slot->scopestack_max * sizeof (I32); |
|
|
712 | rss += slot->savestack_max * sizeof (ANY); |
|
|
713 | |
|
|
714 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
715 | rss += slot->retstack_max * sizeof (OP *); |
|
|
716 | #endif |
|
|
717 | } |
951 | } |
718 | } |
952 | } |
719 | |
953 | |
720 | return rss; |
954 | return rss; |
721 | } |
955 | } |
… | |
… | |
734 | #endif |
968 | #endif |
735 | |
969 | |
736 | /* |
970 | /* |
737 | * This overrides the default magic get method of %SIG elements. |
971 | * This overrides the default magic get method of %SIG elements. |
738 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
972 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
739 | * and instead of tryign to save and restore the hash elements, we just provide |
973 | * and instead of trying to save and restore the hash elements (extremely slow), |
740 | * readback here. |
974 | * we just provide our own readback here. |
741 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
742 | * not expecting this to actually change the hook. This is a potential problem |
|
|
743 | * when a schedule happens then, but we ignore this. |
|
|
744 | */ |
975 | */ |
745 | static int |
976 | static int |
746 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
977 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
747 | { |
978 | { |
748 | const char *s = MgPV_nolen_const (mg); |
979 | const char *s = MgPV_nolen_const (mg); |
… | |
… | |
801 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
1032 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
802 | |
1033 | |
803 | if (svp) |
1034 | if (svp) |
804 | { |
1035 | { |
805 | SV *old = *svp; |
1036 | SV *old = *svp; |
806 | *svp = newSVsv (sv); |
1037 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
807 | SvREFCNT_dec (old); |
1038 | SvREFCNT_dec (old); |
808 | return 0; |
1039 | return 0; |
809 | } |
1040 | } |
810 | } |
1041 | } |
811 | |
1042 | |
… | |
… | |
823 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
1054 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
824 | { |
1055 | { |
825 | return 0; |
1056 | return 0; |
826 | } |
1057 | } |
827 | |
1058 | |
828 | static void |
1059 | static int |
|
|
1060 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1061 | { |
|
|
1062 | return 1; |
|
|
1063 | } |
|
|
1064 | |
|
|
1065 | static UNOP init_perl_op; |
|
|
1066 | |
|
|
1067 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
829 | coro_setup (pTHX_ struct coro *coro) |
1068 | init_perl (pTHX_ struct coro *coro) |
830 | { |
1069 | { |
831 | /* |
1070 | /* |
832 | * emulate part of the perl startup here. |
1071 | * emulate part of the perl startup here. |
833 | */ |
1072 | */ |
834 | coro_init_stacks (aTHX); |
1073 | coro_init_stacks (aTHX); |
835 | |
1074 | |
836 | PL_runops = RUNOPS_DEFAULT; |
1075 | PL_runops = RUNOPS_DEFAULT; |
837 | PL_curcop = &PL_compiling; |
1076 | PL_curcop = &PL_compiling; |
838 | PL_in_eval = EVAL_NULL; |
1077 | PL_in_eval = EVAL_NULL; |
839 | PL_comppad = 0; |
1078 | PL_comppad = 0; |
|
|
1079 | PL_comppad_name = 0; |
|
|
1080 | PL_comppad_name_fill = 0; |
|
|
1081 | PL_comppad_name_floor = 0; |
840 | PL_curpm = 0; |
1082 | PL_curpm = 0; |
841 | PL_curpad = 0; |
1083 | PL_curpad = 0; |
842 | PL_localizing = 0; |
1084 | PL_localizing = 0; |
843 | PL_dirty = 0; |
|
|
844 | PL_restartop = 0; |
1085 | PL_restartop = 0; |
845 | #if PERL_VERSION_ATLEAST (5,10,0) |
1086 | #if PERL_VERSION_ATLEAST (5,10,0) |
846 | PL_parser = 0; |
1087 | PL_parser = 0; |
847 | #endif |
1088 | #endif |
|
|
1089 | PL_hints = 0; |
848 | |
1090 | |
849 | /* recreate the die/warn hooks */ |
1091 | /* recreate the die/warn hooks */ |
850 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
1092 | PL_diehook = SvREFCNT_inc (rv_diehook); |
851 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
1093 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
852 | |
1094 | |
853 | GvSV (PL_defgv) = newSV (0); |
1095 | GvSV (PL_defgv) = newSV (0); |
854 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1096 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
855 | GvSV (PL_errgv) = newSV (0); |
1097 | GvSV (PL_errgv) = newSV (0); |
856 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1098 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1099 | GvHV (PL_hintgv) = 0; |
857 | PL_rs = newSVsv (GvSV (irsgv)); |
1100 | PL_rs = newSVsv (GvSV (irsgv)); |
858 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
1101 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
859 | |
1102 | |
860 | { |
1103 | { |
861 | dSP; |
1104 | dSP; |
862 | UNOP myop; |
1105 | UNOP myop; |
863 | |
1106 | |
864 | Zero (&myop, 1, UNOP); |
1107 | Zero (&myop, 1, UNOP); |
865 | myop.op_next = Nullop; |
1108 | myop.op_next = Nullop; |
|
|
1109 | myop.op_type = OP_ENTERSUB; |
866 | myop.op_flags = OPf_WANT_VOID; |
1110 | myop.op_flags = OPf_WANT_VOID; |
867 | |
1111 | |
868 | PUSHMARK (SP); |
1112 | PUSHMARK (SP); |
869 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
1113 | PUSHs ((SV *)coro->startcv); |
870 | PUTBACK; |
1114 | PUTBACK; |
871 | PL_op = (OP *)&myop; |
1115 | PL_op = (OP *)&myop; |
872 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1116 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
873 | SPAGAIN; |
|
|
874 | } |
1117 | } |
875 | |
1118 | |
876 | /* this newly created coroutine might be run on an existing cctx which most |
1119 | /* this newly created coroutine might be run on an existing cctx which most |
877 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
1120 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
878 | */ |
1121 | */ |
879 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
1122 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
880 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
1123 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
881 | } |
1124 | slf_frame.destroy = 0; |
882 | |
1125 | |
|
|
1126 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1127 | init_perl_op.op_next = PL_op; |
|
|
1128 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1129 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1130 | /* no flags etc. required, as an init function won't be called */ |
|
|
1131 | |
|
|
1132 | PL_op = (OP *)&init_perl_op; |
|
|
1133 | |
|
|
1134 | /* copy throw, in case it was set before init_perl */ |
|
|
1135 | CORO_THROW = coro->except; |
|
|
1136 | |
|
|
1137 | SWAP_SVS (coro); |
|
|
1138 | |
|
|
1139 | if (expect_false (enable_times)) |
|
|
1140 | { |
|
|
1141 | coro_times_update (); |
|
|
1142 | coro_times_sub (coro); |
|
|
1143 | } |
|
|
1144 | } |
|
|
1145 | |
883 | static void |
1146 | static void |
884 | coro_destruct (pTHX_ struct coro *coro) |
1147 | coro_unwind_stacks (pTHX) |
885 | { |
1148 | { |
886 | if (!IN_DESTRUCT) |
1149 | if (!IN_DESTRUCT) |
887 | { |
1150 | { |
888 | /* restore all saved variables and stuff */ |
1151 | /* restore all saved variables and stuff */ |
889 | LEAVE_SCOPE (0); |
1152 | LEAVE_SCOPE (0); |
… | |
… | |
897 | POPSTACK_TO (PL_mainstack); |
1160 | POPSTACK_TO (PL_mainstack); |
898 | |
1161 | |
899 | /* unwind main stack */ |
1162 | /* unwind main stack */ |
900 | dounwind (-1); |
1163 | dounwind (-1); |
901 | } |
1164 | } |
|
|
1165 | } |
902 | |
1166 | |
903 | SvREFCNT_dec (GvSV (PL_defgv)); |
1167 | static void |
904 | SvREFCNT_dec (GvAV (PL_defgv)); |
1168 | destroy_perl (pTHX_ struct coro *coro) |
905 | SvREFCNT_dec (GvSV (PL_errgv)); |
1169 | { |
906 | SvREFCNT_dec (PL_defoutgv); |
1170 | SV *svf [9]; |
907 | SvREFCNT_dec (PL_rs); |
|
|
908 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
909 | |
1171 | |
910 | SvREFCNT_dec (PL_diehook); |
|
|
911 | SvREFCNT_dec (PL_warnhook); |
|
|
912 | |
1172 | { |
|
|
1173 | SV *old_current = SvRV (coro_current); |
|
|
1174 | struct coro *current = SvSTATE (old_current); |
|
|
1175 | |
|
|
1176 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1177 | |
|
|
1178 | save_perl (aTHX_ current); |
|
|
1179 | |
|
|
1180 | /* this will cause transfer_check to croak on block*/ |
|
|
1181 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1182 | |
|
|
1183 | load_perl (aTHX_ coro); |
|
|
1184 | |
|
|
1185 | coro_unwind_stacks (aTHX); |
|
|
1186 | |
|
|
1187 | /* restore swapped sv's */ |
|
|
1188 | SWAP_SVS (coro); |
|
|
1189 | |
|
|
1190 | coro_destruct_stacks (aTHX); |
|
|
1191 | |
|
|
1192 | // now save some sv's to be free'd later |
|
|
1193 | svf [0] = GvSV (PL_defgv); |
|
|
1194 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1195 | svf [2] = GvSV (PL_errgv); |
|
|
1196 | svf [3] = (SV *)PL_defoutgv; |
|
|
1197 | svf [4] = PL_rs; |
|
|
1198 | svf [5] = GvSV (irsgv); |
|
|
1199 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1200 | svf [7] = PL_diehook; |
|
|
1201 | svf [8] = PL_warnhook; |
|
|
1202 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1203 | |
|
|
1204 | SvRV_set (coro_current, old_current); |
|
|
1205 | |
|
|
1206 | load_perl (aTHX_ current); |
|
|
1207 | } |
|
|
1208 | |
|
|
1209 | { |
|
|
1210 | unsigned int i; |
|
|
1211 | |
|
|
1212 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1213 | SvREFCNT_dec (svf [i]); |
|
|
1214 | |
913 | SvREFCNT_dec (coro->saved_deffh); |
1215 | SvREFCNT_dec (coro->saved_deffh); |
914 | SvREFCNT_dec (coro->throw); |
1216 | SvREFCNT_dec (coro->rouse_cb); |
915 | |
1217 | SvREFCNT_dec (coro->invoke_cb); |
916 | coro_destruct_stacks (aTHX); |
1218 | SvREFCNT_dec (coro->invoke_av); |
|
|
1219 | } |
917 | } |
1220 | } |
918 | |
1221 | |
919 | INLINE void |
1222 | INLINE void |
920 | free_coro_mortal (pTHX) |
1223 | free_coro_mortal (pTHX) |
921 | { |
1224 | { |
922 | if (expect_true (coro_mortal)) |
1225 | if (expect_true (coro_mortal)) |
923 | { |
1226 | { |
924 | SvREFCNT_dec (coro_mortal); |
1227 | SvREFCNT_dec ((SV *)coro_mortal); |
925 | coro_mortal = 0; |
1228 | coro_mortal = 0; |
926 | } |
1229 | } |
927 | } |
1230 | } |
928 | |
1231 | |
929 | static int |
1232 | static int |
930 | runops_trace (pTHX) |
1233 | runops_trace (pTHX) |
931 | { |
1234 | { |
932 | COP *oldcop = 0; |
1235 | COP *oldcop = 0; |
933 | int oldcxix = -2; |
1236 | int oldcxix = -2; |
934 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
935 | coro_cctx *cctx = coro->cctx; |
|
|
936 | |
1237 | |
937 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1238 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
938 | { |
1239 | { |
939 | PERL_ASYNC_CHECK (); |
1240 | PERL_ASYNC_CHECK (); |
940 | |
1241 | |
941 | if (cctx->flags & CC_TRACE_ALL) |
1242 | if (cctx_current->flags & CC_TRACE_ALL) |
942 | { |
1243 | { |
943 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1244 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
944 | { |
1245 | { |
945 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1246 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
946 | SV **bot, **top; |
1247 | SV **bot, **top; |
947 | AV *av = newAV (); /* return values */ |
1248 | AV *av = newAV (); /* return values */ |
948 | SV **cb; |
1249 | SV **cb; |
… | |
… | |
985 | |
1286 | |
986 | if (PL_curcop != &PL_compiling) |
1287 | if (PL_curcop != &PL_compiling) |
987 | { |
1288 | { |
988 | SV **cb; |
1289 | SV **cb; |
989 | |
1290 | |
990 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1291 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
991 | { |
1292 | { |
992 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1293 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
993 | |
1294 | |
994 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1295 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
995 | { |
1296 | { |
996 | runops_proc_t old_runops = PL_runops; |
|
|
997 | dSP; |
1297 | dSP; |
998 | GV *gv = CvGV (cx->blk_sub.cv); |
1298 | GV *gv = CvGV (cx->blk_sub.cv); |
999 | SV *fullname = sv_2mortal (newSV (0)); |
1299 | SV *fullname = sv_2mortal (newSV (0)); |
1000 | |
1300 | |
1001 | if (isGV (gv)) |
1301 | if (isGV (gv)) |
… | |
… | |
1006 | SAVETMPS; |
1306 | SAVETMPS; |
1007 | EXTEND (SP, 3); |
1307 | EXTEND (SP, 3); |
1008 | PUSHMARK (SP); |
1308 | PUSHMARK (SP); |
1009 | PUSHs (&PL_sv_yes); |
1309 | PUSHs (&PL_sv_yes); |
1010 | PUSHs (fullname); |
1310 | PUSHs (fullname); |
1011 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1311 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1012 | PUTBACK; |
1312 | PUTBACK; |
1013 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1313 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1014 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1314 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1015 | SPAGAIN; |
1315 | SPAGAIN; |
1016 | FREETMPS; |
1316 | FREETMPS; |
… | |
… | |
1019 | } |
1319 | } |
1020 | |
1320 | |
1021 | oldcxix = cxstack_ix; |
1321 | oldcxix = cxstack_ix; |
1022 | } |
1322 | } |
1023 | |
1323 | |
1024 | if (cctx->flags & CC_TRACE_LINE) |
1324 | if (cctx_current->flags & CC_TRACE_LINE) |
1025 | { |
1325 | { |
1026 | dSP; |
1326 | dSP; |
1027 | |
1327 | |
1028 | PL_runops = RUNOPS_DEFAULT; |
1328 | PL_runops = RUNOPS_DEFAULT; |
1029 | ENTER; |
1329 | ENTER; |
… | |
… | |
1048 | |
1348 | |
1049 | TAINT_NOT; |
1349 | TAINT_NOT; |
1050 | return 0; |
1350 | return 0; |
1051 | } |
1351 | } |
1052 | |
1352 | |
|
|
1353 | static struct CoroSLF cctx_ssl_frame; |
|
|
1354 | |
1053 | static void |
1355 | static void |
1054 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1356 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1055 | { |
1357 | { |
1056 | ta->prev = (struct coro *)cctx; |
|
|
1057 | ta->next = 0; |
1358 | ta->prev = 0; |
1058 | } |
1359 | } |
1059 | |
1360 | |
1060 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1361 | static int |
1061 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1362 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1062 | /* during execution of a perl program */ |
1363 | { |
1063 | /* also initialises PL_top_env */ |
1364 | *frame = cctx_ssl_frame; |
|
|
1365 | |
|
|
1366 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1367 | } |
|
|
1368 | |
|
|
1369 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1064 | static void NOINLINE |
1370 | static void NOINLINE |
1065 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1371 | cctx_prepare (pTHX) |
1066 | { |
1372 | { |
1067 | dSP; |
|
|
1068 | UNOP myop; |
|
|
1069 | |
|
|
1070 | PL_top_env = &PL_start_env; |
1373 | PL_top_env = &PL_start_env; |
1071 | |
1374 | |
1072 | if (cctx->flags & CC_TRACE) |
1375 | if (cctx_current->flags & CC_TRACE) |
1073 | PL_runops = runops_trace; |
1376 | PL_runops = runops_trace; |
1074 | |
1377 | |
1075 | Zero (&myop, 1, UNOP); |
1378 | /* we already must be executing an SLF op, there is no other valid way |
1076 | myop.op_next = PL_op; |
1379 | * that can lead to creation of a new cctx */ |
1077 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1380 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1381 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1078 | |
1382 | |
1079 | PUSHMARK (SP); |
1383 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1080 | EXTEND (SP, 2); |
1384 | cctx_ssl_frame = slf_frame; |
1081 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1385 | |
1082 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1386 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1083 | PUTBACK; |
1387 | slf_frame.check = slf_check_set_stacklevel; |
1084 | PL_op = (OP *)&myop; |
|
|
1085 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1086 | SPAGAIN; |
|
|
1087 | } |
1388 | } |
1088 | |
1389 | |
1089 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1390 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1090 | INLINE void |
1391 | INLINE void |
1091 | transfer_tail (pTHX) |
1392 | transfer_tail (pTHX) |
1092 | { |
1393 | { |
1093 | struct coro *next = (struct coro *)transfer_next; |
|
|
1094 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1095 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1096 | |
|
|
1097 | free_coro_mortal (aTHX); |
1394 | free_coro_mortal (aTHX); |
1098 | UNLOCK; |
|
|
1099 | |
|
|
1100 | if (expect_false (next->throw)) |
|
|
1101 | { |
|
|
1102 | SV *exception = sv_2mortal (next->throw); |
|
|
1103 | |
|
|
1104 | next->throw = 0; |
|
|
1105 | sv_setsv (ERRSV, exception); |
|
|
1106 | croak (0); |
|
|
1107 | } |
|
|
1108 | } |
1395 | } |
1109 | |
1396 | |
1110 | /* |
1397 | /* |
1111 | * this is a _very_ stripped down perl interpreter ;) |
1398 | * this is a _very_ stripped down perl interpreter ;) |
1112 | */ |
1399 | */ |
… | |
… | |
1124 | /* normally we would need to skip the entersub here */ |
1411 | /* normally we would need to skip the entersub here */ |
1125 | /* not doing so will re-execute it, which is exactly what we want */ |
1412 | /* not doing so will re-execute it, which is exactly what we want */ |
1126 | /* PL_nop = PL_nop->op_next */ |
1413 | /* PL_nop = PL_nop->op_next */ |
1127 | |
1414 | |
1128 | /* inject a fake subroutine call to cctx_init */ |
1415 | /* inject a fake subroutine call to cctx_init */ |
1129 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1416 | cctx_prepare (aTHX); |
1130 | |
1417 | |
1131 | /* cctx_run is the alternative tail of transfer() */ |
1418 | /* cctx_run is the alternative tail of transfer() */ |
1132 | /* TODO: throwing an exception here might be deadly, VERIFY */ |
|
|
1133 | transfer_tail (aTHX); |
1419 | transfer_tail (aTHX); |
1134 | |
1420 | |
1135 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1421 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1136 | PL_restartop = PL_op; |
1422 | PL_restartop = PL_op; |
1137 | perl_run (PL_curinterp); |
1423 | perl_run (PL_curinterp); |
|
|
1424 | /* |
|
|
1425 | * Unfortunately, there is no way to get at the return values of the |
|
|
1426 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1427 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1428 | */ |
1138 | |
1429 | |
1139 | /* |
1430 | /* |
1140 | * If perl-run returns we assume exit() was being called or the coro |
1431 | * If perl-run returns we assume exit() was being called or the coro |
1141 | * fell off the end, which seems to be the only valid (non-bug) |
1432 | * fell off the end, which seems to be the only valid (non-bug) |
1142 | * reason for perl_run to return. We try to exit by jumping to the |
1433 | * reason for perl_run to return. We try to exit by jumping to the |
1143 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1434 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1144 | * coroutine as Coro has no such concept |
1435 | * coroutine as Coro has no such concept. |
|
|
1436 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1437 | * that backend are too broken to do it in a standards-compliant way. |
1145 | */ |
1438 | */ |
1146 | PL_top_env = main_top_env; |
1439 | PL_top_env = main_top_env; |
1147 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1440 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1148 | } |
1441 | } |
1149 | } |
1442 | } |
… | |
… | |
1226 | cctx_destroy (coro_cctx *cctx) |
1519 | cctx_destroy (coro_cctx *cctx) |
1227 | { |
1520 | { |
1228 | if (!cctx) |
1521 | if (!cctx) |
1229 | return; |
1522 | return; |
1230 | |
1523 | |
|
|
1524 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1525 | |
1231 | --cctx_count; |
1526 | --cctx_count; |
1232 | coro_destroy (&cctx->cctx); |
1527 | coro_destroy (&cctx->cctx); |
1233 | |
1528 | |
1234 | /* coro_transfer creates new, empty cctx's */ |
1529 | /* coro_transfer creates new, empty cctx's */ |
1235 | if (cctx->sptr) |
1530 | if (cctx->sptr) |
… | |
… | |
1293 | /** coroutine switching *****************************************************/ |
1588 | /** coroutine switching *****************************************************/ |
1294 | |
1589 | |
1295 | static void |
1590 | static void |
1296 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1591 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1297 | { |
1592 | { |
|
|
1593 | /* TODO: throwing up here is considered harmful */ |
|
|
1594 | |
1298 | if (expect_true (prev != next)) |
1595 | if (expect_true (prev != next)) |
1299 | { |
1596 | { |
1300 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1597 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1301 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1598 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1302 | |
1599 | |
1303 | if (expect_false (next->flags & CF_RUNNING)) |
1600 | if (expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
1304 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
|
|
1305 | |
|
|
1306 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1307 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1601 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1308 | |
1602 | |
1309 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1603 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1310 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1604 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1311 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1605 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1312 | #endif |
1606 | #endif |
1313 | } |
1607 | } |
1314 | } |
1608 | } |
1315 | |
1609 | |
1316 | /* always use the TRANSFER macro */ |
1610 | /* always use the TRANSFER macro */ |
1317 | static void NOINLINE |
1611 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1318 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1612 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1319 | { |
1613 | { |
1320 | dSTACKLEVEL; |
1614 | dSTACKLEVEL; |
1321 | |
1615 | |
1322 | /* sometimes transfer is only called to set idle_sp */ |
1616 | /* sometimes transfer is only called to set idle_sp */ |
1323 | if (expect_false (!next)) |
1617 | if (expect_false (!prev)) |
1324 | { |
1618 | { |
1325 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
1619 | cctx_current->idle_sp = STACKLEVEL; |
1326 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1620 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1327 | } |
1621 | } |
1328 | else if (expect_true (prev != next)) |
1622 | else if (expect_true (prev != next)) |
1329 | { |
1623 | { |
1330 | coro_cctx *prev__cctx; |
1624 | coro_cctx *cctx_prev; |
1331 | |
1625 | |
1332 | if (expect_false (prev->flags & CF_NEW)) |
1626 | if (expect_false (prev->flags & CF_NEW)) |
1333 | { |
1627 | { |
1334 | /* create a new empty/source context */ |
1628 | /* create a new empty/source context */ |
1335 | prev->cctx = cctx_new_empty (); |
|
|
1336 | prev->flags &= ~CF_NEW; |
1629 | prev->flags &= ~CF_NEW; |
1337 | prev->flags |= CF_RUNNING; |
1630 | prev->flags |= CF_RUNNING; |
1338 | } |
1631 | } |
1339 | |
1632 | |
1340 | prev->flags &= ~CF_RUNNING; |
1633 | prev->flags &= ~CF_RUNNING; |
1341 | next->flags |= CF_RUNNING; |
1634 | next->flags |= CF_RUNNING; |
1342 | |
|
|
1343 | LOCK; |
|
|
1344 | |
1635 | |
1345 | /* first get rid of the old state */ |
1636 | /* first get rid of the old state */ |
1346 | save_perl (aTHX_ prev); |
1637 | save_perl (aTHX_ prev); |
1347 | |
1638 | |
1348 | if (expect_false (next->flags & CF_NEW)) |
1639 | if (expect_false (next->flags & CF_NEW)) |
1349 | { |
1640 | { |
1350 | /* need to start coroutine */ |
1641 | /* need to start coroutine */ |
1351 | next->flags &= ~CF_NEW; |
1642 | next->flags &= ~CF_NEW; |
1352 | /* setup coroutine call */ |
1643 | /* setup coroutine call */ |
1353 | coro_setup (aTHX_ next); |
1644 | init_perl (aTHX_ next); |
1354 | } |
1645 | } |
1355 | else |
1646 | else |
1356 | load_perl (aTHX_ next); |
1647 | load_perl (aTHX_ next); |
1357 | |
1648 | |
1358 | prev__cctx = prev->cctx; |
|
|
1359 | |
|
|
1360 | /* possibly untie and reuse the cctx */ |
1649 | /* possibly untie and reuse the cctx */ |
1361 | if (expect_true ( |
1650 | if (expect_true ( |
1362 | prev__cctx->idle_sp == (void *)stacklevel |
1651 | cctx_current->idle_sp == STACKLEVEL |
1363 | && !(prev__cctx->flags & CC_TRACE) |
1652 | && !(cctx_current->flags & CC_TRACE) |
1364 | && !force_cctx |
1653 | && !force_cctx |
1365 | )) |
1654 | )) |
1366 | { |
1655 | { |
1367 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1656 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1368 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1657 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1369 | |
1658 | |
1370 | prev->cctx = 0; |
|
|
1371 | |
|
|
1372 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1659 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1373 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1660 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1374 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1661 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1375 | if (!next->cctx) |
1662 | if (expect_true (!next->cctx)) |
1376 | next->cctx = cctx_get (aTHX); |
1663 | next->cctx = cctx_get (aTHX); |
1377 | |
1664 | |
1378 | cctx_put (prev__cctx); |
1665 | cctx_put (cctx_current); |
1379 | } |
1666 | } |
|
|
1667 | else |
|
|
1668 | prev->cctx = cctx_current; |
1380 | |
1669 | |
1381 | ++next->usecount; |
1670 | ++next->usecount; |
1382 | |
1671 | |
1383 | if (expect_true (!next->cctx)) |
1672 | cctx_prev = cctx_current; |
1384 | next->cctx = cctx_get (aTHX); |
1673 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1385 | |
1674 | |
1386 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
1675 | next->cctx = 0; |
1387 | transfer_next = next; |
|
|
1388 | |
1676 | |
1389 | if (expect_false (prev__cctx != next->cctx)) |
1677 | if (expect_false (cctx_prev != cctx_current)) |
1390 | { |
1678 | { |
1391 | prev__cctx->top_env = PL_top_env; |
1679 | cctx_prev->top_env = PL_top_env; |
1392 | PL_top_env = next->cctx->top_env; |
1680 | PL_top_env = cctx_current->top_env; |
1393 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1681 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1394 | } |
1682 | } |
1395 | |
1683 | |
1396 | transfer_tail (aTHX); |
1684 | transfer_tail (aTHX); |
1397 | } |
1685 | } |
1398 | } |
1686 | } |
… | |
… | |
1400 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1688 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1401 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1689 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1402 | |
1690 | |
1403 | /** high level stuff ********************************************************/ |
1691 | /** high level stuff ********************************************************/ |
1404 | |
1692 | |
|
|
1693 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1694 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
1405 | static int |
1695 | static void |
|
|
1696 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1697 | |
|
|
1698 | static void |
1406 | coro_state_destroy (pTHX_ struct coro *coro) |
1699 | coro_state_destroy (pTHX_ struct coro *coro) |
1407 | { |
1700 | { |
1408 | if (coro->flags & CF_DESTROYED) |
1701 | if (coro->flags & CF_ZOMBIE) |
1409 | return 0; |
1702 | return; |
1410 | |
1703 | |
|
|
1704 | slf_destroy (aTHX_ coro); |
|
|
1705 | |
1411 | coro->flags |= CF_DESTROYED; |
1706 | coro->flags |= CF_ZOMBIE; |
1412 | |
1707 | |
1413 | if (coro->flags & CF_READY) |
1708 | if (coro->flags & CF_READY) |
1414 | { |
1709 | { |
1415 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1710 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1416 | /* alternative: look through all ready queues and remove the coro */ |
1711 | /* alternative: look through all ready queues and remove the coro */ |
1417 | LOCK; |
|
|
1418 | --coro_nready; |
1712 | --coro_nready; |
1419 | UNLOCK; |
|
|
1420 | } |
1713 | } |
1421 | else |
1714 | else |
1422 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1715 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1423 | |
|
|
1424 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
1425 | { |
|
|
1426 | struct coro temp; |
|
|
1427 | |
|
|
1428 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
|
|
1429 | |
|
|
1430 | save_perl (aTHX_ &temp); |
|
|
1431 | load_perl (aTHX_ coro); |
|
|
1432 | |
|
|
1433 | coro_destruct (aTHX_ coro); |
|
|
1434 | |
|
|
1435 | load_perl (aTHX_ &temp); |
|
|
1436 | |
|
|
1437 | coro->slot = 0; |
|
|
1438 | } |
|
|
1439 | |
|
|
1440 | cctx_destroy (coro->cctx); |
|
|
1441 | SvREFCNT_dec (coro->args); |
|
|
1442 | |
1716 | |
1443 | if (coro->next) coro->next->prev = coro->prev; |
1717 | if (coro->next) coro->next->prev = coro->prev; |
1444 | if (coro->prev) coro->prev->next = coro->next; |
1718 | if (coro->prev) coro->prev->next = coro->next; |
1445 | if (coro == coro_first) coro_first = coro->next; |
1719 | if (coro == coro_first) coro_first = coro->next; |
1446 | |
1720 | |
1447 | return 1; |
1721 | if (coro->mainstack |
|
|
1722 | && coro->mainstack != main_mainstack |
|
|
1723 | && coro->slot |
|
|
1724 | && !PL_dirty) |
|
|
1725 | destroy_perl (aTHX_ coro); |
|
|
1726 | |
|
|
1727 | cctx_destroy (coro->cctx); |
|
|
1728 | SvREFCNT_dec (coro->startcv); |
|
|
1729 | SvREFCNT_dec (coro->args); |
|
|
1730 | SvREFCNT_dec (coro->swap_sv); |
|
|
1731 | SvREFCNT_dec (CORO_THROW); |
|
|
1732 | |
|
|
1733 | coro_call_on_destroy (aTHX_ coro); |
|
|
1734 | |
|
|
1735 | /* more destruction mayhem in coro_state_free */ |
1448 | } |
1736 | } |
1449 | |
1737 | |
1450 | static int |
1738 | static int |
1451 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1739 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1452 | { |
1740 | { |
1453 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1741 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1454 | mg->mg_ptr = 0; |
1742 | mg->mg_ptr = 0; |
1455 | |
1743 | |
1456 | coro->hv = 0; |
|
|
1457 | |
|
|
1458 | if (--coro->refcnt < 0) |
|
|
1459 | { |
|
|
1460 | coro_state_destroy (aTHX_ coro); |
1744 | coro_state_destroy (aTHX_ coro); |
|
|
1745 | SvREFCNT_dec (coro->on_destroy); |
|
|
1746 | SvREFCNT_dec (coro->status); |
|
|
1747 | |
1461 | Safefree (coro); |
1748 | Safefree (coro); |
1462 | } |
|
|
1463 | |
1749 | |
1464 | return 0; |
1750 | return 0; |
1465 | } |
1751 | } |
1466 | |
1752 | |
1467 | static int |
1753 | static int |
1468 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1754 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1469 | { |
1755 | { |
1470 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1756 | /* called when perl clones the current process the slow way (windows process emulation) */ |
1471 | |
1757 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
1472 | ++coro->refcnt; |
1758 | mg->mg_ptr = 0; |
|
|
1759 | mg->mg_virtual = 0; |
1473 | |
1760 | |
1474 | return 0; |
1761 | return 0; |
1475 | } |
1762 | } |
1476 | |
1763 | |
1477 | static MGVTBL coro_state_vtbl = { |
1764 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
1502 | TRANSFER (ta, 1); |
1789 | TRANSFER (ta, 1); |
1503 | } |
1790 | } |
1504 | |
1791 | |
1505 | /** Coro ********************************************************************/ |
1792 | /** Coro ********************************************************************/ |
1506 | |
1793 | |
1507 | static void |
1794 | INLINE void |
1508 | coro_enq (pTHX_ SV *coro_sv) |
1795 | coro_enq (pTHX_ struct coro *coro) |
1509 | { |
1796 | { |
1510 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1797 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1511 | } |
|
|
1512 | |
1798 | |
1513 | static SV * |
1799 | SvREFCNT_inc_NN (coro->hv); |
|
|
1800 | |
|
|
1801 | coro->next_ready = 0; |
|
|
1802 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1803 | ready [1] = coro; |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | INLINE struct coro * |
1514 | coro_deq (pTHX) |
1807 | coro_deq (pTHX) |
1515 | { |
1808 | { |
1516 | int prio; |
1809 | int prio; |
1517 | |
1810 | |
1518 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1811 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1519 | if (AvFILLp (coro_ready [prio]) >= 0) |
1812 | { |
1520 | return av_shift (coro_ready [prio]); |
1813 | struct coro **ready = coro_ready [prio]; |
|
|
1814 | |
|
|
1815 | if (ready [0]) |
|
|
1816 | { |
|
|
1817 | struct coro *coro = ready [0]; |
|
|
1818 | ready [0] = coro->next_ready; |
|
|
1819 | return coro; |
|
|
1820 | } |
|
|
1821 | } |
1521 | |
1822 | |
1522 | return 0; |
1823 | return 0; |
|
|
1824 | } |
|
|
1825 | |
|
|
1826 | static void |
|
|
1827 | invoke_sv_ready_hook_helper (void) |
|
|
1828 | { |
|
|
1829 | dTHX; |
|
|
1830 | dSP; |
|
|
1831 | |
|
|
1832 | ENTER; |
|
|
1833 | SAVETMPS; |
|
|
1834 | |
|
|
1835 | PUSHMARK (SP); |
|
|
1836 | PUTBACK; |
|
|
1837 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1838 | |
|
|
1839 | FREETMPS; |
|
|
1840 | LEAVE; |
1523 | } |
1841 | } |
1524 | |
1842 | |
1525 | static int |
1843 | static int |
1526 | api_ready (pTHX_ SV *coro_sv) |
1844 | api_ready (pTHX_ SV *coro_sv) |
1527 | { |
1845 | { |
1528 | struct coro *coro; |
|
|
1529 | SV *sv_hook; |
|
|
1530 | void (*xs_hook)(void); |
|
|
1531 | |
|
|
1532 | if (SvROK (coro_sv)) |
|
|
1533 | coro_sv = SvRV (coro_sv); |
|
|
1534 | |
|
|
1535 | coro = SvSTATE (coro_sv); |
1846 | struct coro *coro = SvSTATE (coro_sv); |
1536 | |
1847 | |
1537 | if (coro->flags & CF_READY) |
1848 | if (coro->flags & CF_READY) |
1538 | return 0; |
1849 | return 0; |
1539 | |
1850 | |
1540 | coro->flags |= CF_READY; |
1851 | coro->flags |= CF_READY; |
1541 | |
1852 | |
1542 | LOCK; |
1853 | coro_enq (aTHX_ coro); |
1543 | |
1854 | |
1544 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1855 | if (!coro_nready++) |
1545 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1856 | if (coroapi.readyhook) |
1546 | |
1857 | coroapi.readyhook (); |
1547 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
|
|
1548 | ++coro_nready; |
|
|
1549 | |
|
|
1550 | UNLOCK; |
|
|
1551 | |
|
|
1552 | if (sv_hook) |
|
|
1553 | { |
|
|
1554 | dSP; |
|
|
1555 | |
|
|
1556 | ENTER; |
|
|
1557 | SAVETMPS; |
|
|
1558 | |
|
|
1559 | PUSHMARK (SP); |
|
|
1560 | PUTBACK; |
|
|
1561 | call_sv (sv_hook, G_DISCARD); |
|
|
1562 | SPAGAIN; |
|
|
1563 | |
|
|
1564 | FREETMPS; |
|
|
1565 | LEAVE; |
|
|
1566 | } |
|
|
1567 | |
|
|
1568 | if (xs_hook) |
|
|
1569 | xs_hook (); |
|
|
1570 | |
1858 | |
1571 | return 1; |
1859 | return 1; |
1572 | } |
1860 | } |
1573 | |
1861 | |
1574 | static int |
1862 | static int |
1575 | api_is_ready (pTHX_ SV *coro_sv) |
1863 | api_is_ready (pTHX_ SV *coro_sv) |
1576 | { |
1864 | { |
1577 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1865 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1578 | } |
1866 | } |
1579 | |
1867 | |
|
|
1868 | /* expects to own a reference to next->hv */ |
1580 | INLINE void |
1869 | INLINE void |
1581 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1870 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1582 | { |
1871 | { |
1583 | SV *prev_sv, *next_sv; |
|
|
1584 | |
|
|
1585 | for (;;) |
|
|
1586 | { |
|
|
1587 | LOCK; |
|
|
1588 | next_sv = coro_deq (aTHX); |
|
|
1589 | |
|
|
1590 | /* nothing to schedule: call the idle handler */ |
|
|
1591 | if (expect_false (!next_sv)) |
|
|
1592 | { |
|
|
1593 | dSP; |
|
|
1594 | UNLOCK; |
|
|
1595 | |
|
|
1596 | ENTER; |
|
|
1597 | SAVETMPS; |
|
|
1598 | |
|
|
1599 | PUSHMARK (SP); |
|
|
1600 | PUTBACK; |
|
|
1601 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1602 | SPAGAIN; |
|
|
1603 | |
|
|
1604 | FREETMPS; |
|
|
1605 | LEAVE; |
|
|
1606 | continue; |
|
|
1607 | } |
|
|
1608 | |
|
|
1609 | ta->next = SvSTATE (next_sv); |
|
|
1610 | |
|
|
1611 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1612 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1613 | { |
|
|
1614 | UNLOCK; |
|
|
1615 | SvREFCNT_dec (next_sv); |
|
|
1616 | /* coro_nready has already been taken care of by destroy */ |
|
|
1617 | continue; |
|
|
1618 | } |
|
|
1619 | |
|
|
1620 | --coro_nready; |
|
|
1621 | UNLOCK; |
|
|
1622 | break; |
|
|
1623 | } |
|
|
1624 | |
|
|
1625 | /* free this only after the transfer */ |
|
|
1626 | prev_sv = SvRV (coro_current); |
1872 | SV *prev_sv = SvRV (coro_current); |
|
|
1873 | |
1627 | ta->prev = SvSTATE (prev_sv); |
1874 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1875 | ta->next = next; |
|
|
1876 | |
1628 | TRANSFER_CHECK (*ta); |
1877 | TRANSFER_CHECK (*ta); |
1629 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1878 | |
1630 | ta->next->flags &= ~CF_READY; |
|
|
1631 | SvRV_set (coro_current, next_sv); |
1879 | SvRV_set (coro_current, (SV *)next->hv); |
1632 | |
1880 | |
1633 | LOCK; |
|
|
1634 | free_coro_mortal (aTHX); |
1881 | free_coro_mortal (aTHX); |
1635 | coro_mortal = prev_sv; |
1882 | coro_mortal = prev_sv; |
1636 | UNLOCK; |
1883 | } |
|
|
1884 | |
|
|
1885 | static void |
|
|
1886 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1887 | { |
|
|
1888 | for (;;) |
|
|
1889 | { |
|
|
1890 | struct coro *next = coro_deq (aTHX); |
|
|
1891 | |
|
|
1892 | if (expect_true (next)) |
|
|
1893 | { |
|
|
1894 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1895 | if (expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1896 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1897 | else |
|
|
1898 | { |
|
|
1899 | next->flags &= ~CF_READY; |
|
|
1900 | --coro_nready; |
|
|
1901 | |
|
|
1902 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1903 | break; |
|
|
1904 | } |
|
|
1905 | } |
|
|
1906 | else |
|
|
1907 | { |
|
|
1908 | /* nothing to schedule: call the idle handler */ |
|
|
1909 | if (SvROK (sv_idle) |
|
|
1910 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1911 | { |
|
|
1912 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1913 | croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught"); |
|
|
1914 | |
|
|
1915 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1916 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1917 | --coro_nready; |
|
|
1918 | } |
|
|
1919 | else |
|
|
1920 | { |
|
|
1921 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
1922 | dSP; |
|
|
1923 | |
|
|
1924 | ENTER; |
|
|
1925 | SAVETMPS; |
|
|
1926 | |
|
|
1927 | PUSHMARK (SP); |
|
|
1928 | PUTBACK; |
|
|
1929 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1930 | |
|
|
1931 | FREETMPS; |
|
|
1932 | LEAVE; |
|
|
1933 | } |
|
|
1934 | } |
|
|
1935 | } |
1637 | } |
1936 | } |
1638 | |
1937 | |
1639 | INLINE void |
1938 | INLINE void |
1640 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1939 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1641 | { |
1940 | { |
… | |
… | |
1662 | { |
1961 | { |
1663 | struct coro_transfer_args ta; |
1962 | struct coro_transfer_args ta; |
1664 | |
1963 | |
1665 | prepare_schedule (aTHX_ &ta); |
1964 | prepare_schedule (aTHX_ &ta); |
1666 | TRANSFER (ta, 1); |
1965 | TRANSFER (ta, 1); |
|
|
1966 | } |
|
|
1967 | |
|
|
1968 | static void |
|
|
1969 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1970 | { |
|
|
1971 | struct coro_transfer_args ta; |
|
|
1972 | struct coro *next = SvSTATE (coro_sv); |
|
|
1973 | |
|
|
1974 | SvREFCNT_inc_NN (coro_sv); |
|
|
1975 | prepare_schedule_to (aTHX_ &ta, next); |
1667 | } |
1976 | } |
1668 | |
1977 | |
1669 | static int |
1978 | static int |
1670 | api_cede (pTHX) |
1979 | api_cede (pTHX) |
1671 | { |
1980 | { |
… | |
… | |
1700 | static void |
2009 | static void |
1701 | api_trace (pTHX_ SV *coro_sv, int flags) |
2010 | api_trace (pTHX_ SV *coro_sv, int flags) |
1702 | { |
2011 | { |
1703 | struct coro *coro = SvSTATE (coro_sv); |
2012 | struct coro *coro = SvSTATE (coro_sv); |
1704 | |
2013 | |
|
|
2014 | if (coro->flags & CF_RUNNING) |
|
|
2015 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
2016 | |
1705 | if (flags & CC_TRACE) |
2017 | if (flags & CC_TRACE) |
1706 | { |
2018 | { |
1707 | if (!coro->cctx) |
2019 | if (!coro->cctx) |
1708 | coro->cctx = cctx_new_run (); |
2020 | coro->cctx = cctx_new_run (); |
1709 | else if (!(coro->cctx->flags & CC_TRACE)) |
2021 | else if (!(coro->cctx->flags & CC_TRACE)) |
1710 | croak ("cannot enable tracing on coroutine with custom stack,"); |
2022 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1711 | |
2023 | |
1712 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
2024 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1713 | } |
2025 | } |
1714 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
2026 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1715 | { |
2027 | { |
… | |
… | |
1718 | if (coro->flags & CF_RUNNING) |
2030 | if (coro->flags & CF_RUNNING) |
1719 | PL_runops = RUNOPS_DEFAULT; |
2031 | PL_runops = RUNOPS_DEFAULT; |
1720 | else |
2032 | else |
1721 | coro->slot->runops = RUNOPS_DEFAULT; |
2033 | coro->slot->runops = RUNOPS_DEFAULT; |
1722 | } |
2034 | } |
|
|
2035 | } |
|
|
2036 | |
|
|
2037 | static void |
|
|
2038 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2039 | { |
|
|
2040 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2041 | { |
|
|
2042 | dSP; |
|
|
2043 | |
|
|
2044 | if (gimme_v == G_SCALAR) |
|
|
2045 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2046 | else |
|
|
2047 | { |
|
|
2048 | int i; |
|
|
2049 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2050 | |
|
|
2051 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2052 | PUSHs (AvARRAY (av)[i]); |
|
|
2053 | } |
|
|
2054 | |
|
|
2055 | PUTBACK; |
|
|
2056 | } |
|
|
2057 | } |
|
|
2058 | |
|
|
2059 | static void |
|
|
2060 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2061 | { |
|
|
2062 | if (!coro->on_destroy) |
|
|
2063 | coro->on_destroy = newAV (); |
|
|
2064 | |
|
|
2065 | av_push (coro->on_destroy, cb); |
|
|
2066 | } |
|
|
2067 | |
|
|
2068 | static void |
|
|
2069 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2070 | { |
|
|
2071 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2072 | } |
|
|
2073 | |
|
|
2074 | static int |
|
|
2075 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2076 | { |
|
|
2077 | struct coro *coro = (struct coro *)frame->data; |
|
|
2078 | |
|
|
2079 | if (!coro->status) |
|
|
2080 | return 1; |
|
|
2081 | |
|
|
2082 | frame->destroy = 0; |
|
|
2083 | |
|
|
2084 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2085 | |
|
|
2086 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2087 | |
|
|
2088 | return 0; |
|
|
2089 | } |
|
|
2090 | |
|
|
2091 | static void |
|
|
2092 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2093 | { |
|
|
2094 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2095 | |
|
|
2096 | if (items > 1) |
|
|
2097 | croak ("join called with too many arguments"); |
|
|
2098 | |
|
|
2099 | if (coro->status) |
|
|
2100 | frame->prepare = prepare_nop; |
|
|
2101 | else |
|
|
2102 | { |
|
|
2103 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2104 | frame->prepare = prepare_schedule; |
|
|
2105 | } |
|
|
2106 | |
|
|
2107 | frame->check = slf_check_join; |
|
|
2108 | frame->destroy = slf_destroy_join; |
|
|
2109 | frame->data = (void *)coro; |
|
|
2110 | SvREFCNT_inc (coro->hv); |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | static void |
|
|
2114 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2115 | { |
|
|
2116 | AV *od = coro->on_destroy; |
|
|
2117 | |
|
|
2118 | if (!od) |
|
|
2119 | return; |
|
|
2120 | |
|
|
2121 | while (AvFILLp (od) >= 0) |
|
|
2122 | { |
|
|
2123 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2124 | |
|
|
2125 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2126 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2127 | api_ready (aTHX_ cb); |
|
|
2128 | else |
|
|
2129 | { |
|
|
2130 | dSP; /* don't disturb outer sp */ |
|
|
2131 | PUSHMARK (SP); |
|
|
2132 | |
|
|
2133 | if (coro->status) |
|
|
2134 | { |
|
|
2135 | PUTBACK; |
|
|
2136 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2137 | SPAGAIN; |
|
|
2138 | } |
|
|
2139 | |
|
|
2140 | PUTBACK; |
|
|
2141 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2142 | } |
|
|
2143 | } |
|
|
2144 | } |
|
|
2145 | |
|
|
2146 | static void |
|
|
2147 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2148 | { |
|
|
2149 | AV *av; |
|
|
2150 | |
|
|
2151 | if (coro->status) |
|
|
2152 | { |
|
|
2153 | av = coro->status; |
|
|
2154 | av_clear (av); |
|
|
2155 | } |
|
|
2156 | else |
|
|
2157 | av = coro->status = newAV (); |
|
|
2158 | |
|
|
2159 | /* items are actually not so common, so optimise for this case */ |
|
|
2160 | if (items) |
|
|
2161 | { |
|
|
2162 | int i; |
|
|
2163 | |
|
|
2164 | av_extend (av, items - 1); |
|
|
2165 | |
|
|
2166 | for (i = 0; i < items; ++i) |
|
|
2167 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2168 | } |
|
|
2169 | } |
|
|
2170 | |
|
|
2171 | static void |
|
|
2172 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2173 | { |
|
|
2174 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2175 | api_ready (aTHX_ sv_manager); |
|
|
2176 | |
|
|
2177 | frame->prepare = prepare_schedule; |
|
|
2178 | frame->check = slf_check_repeat; |
|
|
2179 | |
|
|
2180 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2181 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2182 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2183 | } |
|
|
2184 | |
|
|
2185 | static void |
|
|
2186 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2187 | { |
|
|
2188 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2189 | |
|
|
2190 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2191 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2192 | } |
|
|
2193 | |
|
|
2194 | static void |
|
|
2195 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2196 | { |
|
|
2197 | HV *coro_hv; |
|
|
2198 | struct coro *coro; |
|
|
2199 | |
|
|
2200 | if (items <= 0) |
|
|
2201 | croak ("Coro::cancel called without coro object,"); |
|
|
2202 | |
|
|
2203 | coro = SvSTATE (arg [0]); |
|
|
2204 | coro_hv = coro->hv; |
|
|
2205 | |
|
|
2206 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2207 | |
|
|
2208 | if (expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2209 | { |
|
|
2210 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2211 | coro->slf_frame.data = (void *)coro; |
|
|
2212 | |
|
|
2213 | frame->prepare = prepare_nop; |
|
|
2214 | frame->check = slf_check_nop; |
|
|
2215 | } |
|
|
2216 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2217 | { |
|
|
2218 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2219 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2220 | } |
|
|
2221 | else |
|
|
2222 | { |
|
|
2223 | struct coro *self = SvSTATE_current; |
|
|
2224 | |
|
|
2225 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2226 | * unfortunately, this requires some magic trickery, as |
|
|
2227 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2228 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2229 | * besides, I can't get the slow-but-safe version working... |
|
|
2230 | */ |
|
|
2231 | slf_frame.data = 0; |
|
|
2232 | self->flags |= CF_NOCANCEL; |
|
|
2233 | coro_state_destroy (aTHX_ coro); |
|
|
2234 | self->flags &= ~CF_NOCANCEL; |
|
|
2235 | |
|
|
2236 | if (slf_frame.data) |
|
|
2237 | { |
|
|
2238 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2239 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2240 | } |
|
|
2241 | else |
|
|
2242 | { |
|
|
2243 | frame->prepare = prepare_nop; |
|
|
2244 | frame->check = slf_check_nop; |
|
|
2245 | } |
|
|
2246 | } |
|
|
2247 | } |
|
|
2248 | |
|
|
2249 | static int |
|
|
2250 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2251 | { |
|
|
2252 | frame->prepare = 0; |
|
|
2253 | coro_unwind_stacks (aTHX); |
|
|
2254 | |
|
|
2255 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2256 | |
|
|
2257 | return 1; |
|
|
2258 | } |
|
|
2259 | |
|
|
2260 | static int |
|
|
2261 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2262 | { |
|
|
2263 | if (coro->cctx) |
|
|
2264 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2265 | |
|
|
2266 | if (coro->flags & CF_NEW) |
|
|
2267 | { |
|
|
2268 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2269 | coro_state_destroy (aTHX_ coro); |
|
|
2270 | } |
|
|
2271 | else |
|
|
2272 | { |
|
|
2273 | if (!coro->slf_frame.prepare) |
|
|
2274 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2275 | |
|
|
2276 | slf_destroy (aTHX_ coro); |
|
|
2277 | |
|
|
2278 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2279 | coro->slf_frame.prepare = prepare_nop; |
|
|
2280 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2281 | |
|
|
2282 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2283 | } |
|
|
2284 | |
|
|
2285 | return 1; |
|
|
2286 | } |
|
|
2287 | |
|
|
2288 | /*****************************************************************************/ |
|
|
2289 | /* async pool handler */ |
|
|
2290 | |
|
|
2291 | static int |
|
|
2292 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2293 | { |
|
|
2294 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2295 | struct coro *coro = (struct coro *)frame->data; |
|
|
2296 | |
|
|
2297 | if (!coro->invoke_cb) |
|
|
2298 | return 1; /* loop till we have invoke */ |
|
|
2299 | else |
|
|
2300 | { |
|
|
2301 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2302 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2303 | |
|
|
2304 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2305 | |
|
|
2306 | { |
|
|
2307 | dSP; |
|
|
2308 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2309 | PUTBACK; |
|
|
2310 | } |
|
|
2311 | |
|
|
2312 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2313 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2314 | coro->invoke_av = 0; |
|
|
2315 | |
|
|
2316 | return 0; |
|
|
2317 | } |
|
|
2318 | } |
|
|
2319 | |
|
|
2320 | static void |
|
|
2321 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2322 | { |
|
|
2323 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2324 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2325 | |
|
|
2326 | if (expect_true (coro->saved_deffh)) |
|
|
2327 | { |
|
|
2328 | /* subsequent iteration */ |
|
|
2329 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2330 | coro->saved_deffh = 0; |
|
|
2331 | |
|
|
2332 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2333 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2334 | { |
|
|
2335 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2336 | return; |
|
|
2337 | } |
|
|
2338 | else |
|
|
2339 | { |
|
|
2340 | av_clear (GvAV (PL_defgv)); |
|
|
2341 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2342 | |
|
|
2343 | coro->prio = 0; |
|
|
2344 | |
|
|
2345 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2346 | api_trace (aTHX_ coro_current, 0); |
|
|
2347 | |
|
|
2348 | frame->prepare = prepare_schedule; |
|
|
2349 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2350 | } |
|
|
2351 | } |
|
|
2352 | else |
|
|
2353 | { |
|
|
2354 | /* first iteration, simply fall through */ |
|
|
2355 | frame->prepare = prepare_nop; |
|
|
2356 | } |
|
|
2357 | |
|
|
2358 | frame->check = slf_check_pool_handler; |
|
|
2359 | frame->data = (void *)coro; |
|
|
2360 | } |
|
|
2361 | |
|
|
2362 | /*****************************************************************************/ |
|
|
2363 | /* rouse callback */ |
|
|
2364 | |
|
|
2365 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2366 | |
|
|
2367 | static void |
|
|
2368 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2369 | { |
|
|
2370 | dXSARGS; |
|
|
2371 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2372 | |
|
|
2373 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2374 | { |
|
|
2375 | /* first call, set args */ |
|
|
2376 | SV *coro = SvRV (data); |
|
|
2377 | AV *av = newAV (); |
|
|
2378 | |
|
|
2379 | SvRV_set (data, (SV *)av); |
|
|
2380 | |
|
|
2381 | /* better take a full copy of the arguments */ |
|
|
2382 | while (items--) |
|
|
2383 | av_store (av, items, newSVsv (ST (items))); |
|
|
2384 | |
|
|
2385 | api_ready (aTHX_ coro); |
|
|
2386 | SvREFCNT_dec (coro); |
|
|
2387 | } |
|
|
2388 | |
|
|
2389 | XSRETURN_EMPTY; |
|
|
2390 | } |
|
|
2391 | |
|
|
2392 | static int |
|
|
2393 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2394 | { |
|
|
2395 | SV *data = (SV *)frame->data; |
|
|
2396 | |
|
|
2397 | if (CORO_THROW) |
|
|
2398 | return 0; |
|
|
2399 | |
|
|
2400 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2401 | return 1; |
|
|
2402 | |
|
|
2403 | /* now push all results on the stack */ |
|
|
2404 | { |
|
|
2405 | dSP; |
|
|
2406 | AV *av = (AV *)SvRV (data); |
|
|
2407 | int i; |
|
|
2408 | |
|
|
2409 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2410 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2411 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2412 | |
|
|
2413 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2414 | AvFILLp (av) = -1; |
|
|
2415 | av_undef (av); |
|
|
2416 | |
|
|
2417 | PUTBACK; |
|
|
2418 | } |
|
|
2419 | |
|
|
2420 | return 0; |
|
|
2421 | } |
|
|
2422 | |
|
|
2423 | static void |
|
|
2424 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2425 | { |
|
|
2426 | SV *cb; |
|
|
2427 | |
|
|
2428 | if (items) |
|
|
2429 | cb = arg [0]; |
|
|
2430 | else |
|
|
2431 | { |
|
|
2432 | struct coro *coro = SvSTATE_current; |
|
|
2433 | |
|
|
2434 | if (!coro->rouse_cb) |
|
|
2435 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2436 | |
|
|
2437 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2438 | coro->rouse_cb = 0; |
|
|
2439 | } |
|
|
2440 | |
|
|
2441 | if (!SvROK (cb) |
|
|
2442 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2443 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2444 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2445 | |
|
|
2446 | { |
|
|
2447 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2448 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2449 | |
|
|
2450 | frame->data = (void *)data; |
|
|
2451 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2452 | frame->check = slf_check_rouse_wait; |
|
|
2453 | } |
|
|
2454 | } |
|
|
2455 | |
|
|
2456 | static SV * |
|
|
2457 | coro_new_rouse_cb (pTHX) |
|
|
2458 | { |
|
|
2459 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2460 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2461 | SV *data = newRV_inc ((SV *)hv); |
|
|
2462 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2463 | |
|
|
2464 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2465 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2466 | |
|
|
2467 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2468 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2469 | |
|
|
2470 | return cb; |
|
|
2471 | } |
|
|
2472 | |
|
|
2473 | /*****************************************************************************/ |
|
|
2474 | /* schedule-like-function opcode (SLF) */ |
|
|
2475 | |
|
|
2476 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2477 | static const CV *slf_cv; |
|
|
2478 | static SV **slf_argv; |
|
|
2479 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2480 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2481 | |
|
|
2482 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2483 | /* recreate the stack frame as perl will on following calls */ |
|
|
2484 | /* since entersub cleared the stack */ |
|
|
2485 | static OP * |
|
|
2486 | pp_restore (pTHX) |
|
|
2487 | { |
|
|
2488 | int i; |
|
|
2489 | SV **SP = PL_stack_base + slf_ax; |
|
|
2490 | |
|
|
2491 | PUSHMARK (SP); |
|
|
2492 | |
|
|
2493 | EXTEND (SP, slf_argc + 1); |
|
|
2494 | |
|
|
2495 | for (i = 0; i < slf_argc; ++i) |
|
|
2496 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2497 | |
|
|
2498 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2499 | |
|
|
2500 | RETURNOP (slf_restore.op_first); |
|
|
2501 | } |
|
|
2502 | |
|
|
2503 | static void |
|
|
2504 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2505 | { |
|
|
2506 | SV **arg = (SV **)slf_frame.data; |
|
|
2507 | |
|
|
2508 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2509 | } |
|
|
2510 | |
|
|
2511 | static void |
|
|
2512 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2513 | { |
|
|
2514 | if (items != 2) |
|
|
2515 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2516 | |
|
|
2517 | frame->prepare = slf_prepare_transfer; |
|
|
2518 | frame->check = slf_check_nop; |
|
|
2519 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2520 | } |
|
|
2521 | |
|
|
2522 | static void |
|
|
2523 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2524 | { |
|
|
2525 | frame->prepare = prepare_schedule; |
|
|
2526 | frame->check = slf_check_nop; |
|
|
2527 | } |
|
|
2528 | |
|
|
2529 | static void |
|
|
2530 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2531 | { |
|
|
2532 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2533 | |
|
|
2534 | SvREFCNT_inc_NN (next->hv); |
|
|
2535 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2536 | } |
|
|
2537 | |
|
|
2538 | static void |
|
|
2539 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2540 | { |
|
|
2541 | if (!items) |
|
|
2542 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2543 | |
|
|
2544 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2545 | frame->prepare = slf_prepare_schedule_to; |
|
|
2546 | frame->check = slf_check_nop; |
|
|
2547 | } |
|
|
2548 | |
|
|
2549 | static void |
|
|
2550 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2551 | { |
|
|
2552 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2553 | |
|
|
2554 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2555 | } |
|
|
2556 | |
|
|
2557 | static void |
|
|
2558 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2559 | { |
|
|
2560 | frame->prepare = prepare_cede; |
|
|
2561 | frame->check = slf_check_nop; |
|
|
2562 | } |
|
|
2563 | |
|
|
2564 | static void |
|
|
2565 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2566 | { |
|
|
2567 | frame->prepare = prepare_cede_notself; |
|
|
2568 | frame->check = slf_check_nop; |
|
|
2569 | } |
|
|
2570 | |
|
|
2571 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2572 | static void |
|
|
2573 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2574 | { |
|
|
2575 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2576 | if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty) |
|
|
2577 | coro->slf_frame.destroy (aTHX_ &coro->slf_frame); |
|
|
2578 | |
|
|
2579 | /* |
|
|
2580 | * The on_destroy above most likely is from an SLF call. |
|
|
2581 | * Since by definition the SLF call will not finish when we destroy |
|
|
2582 | * the coro, we will have to force-finish it here, otherwise |
|
|
2583 | * cleanup functions cannot call SLF functions. |
|
|
2584 | */ |
|
|
2585 | coro->slf_frame.prepare = 0; |
|
|
2586 | } |
|
|
2587 | |
|
|
2588 | /* |
|
|
2589 | * these not obviously related functions are all rolled into one |
|
|
2590 | * function to increase chances that they all will call transfer with the same |
|
|
2591 | * stack offset |
|
|
2592 | * SLF stands for "schedule-like-function". |
|
|
2593 | */ |
|
|
2594 | static OP * |
|
|
2595 | pp_slf (pTHX) |
|
|
2596 | { |
|
|
2597 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2598 | |
|
|
2599 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2600 | /* the latter happens when a new coro has been started */ |
|
|
2601 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2602 | if (expect_true (!slf_frame.prepare)) |
|
|
2603 | { |
|
|
2604 | /* first iteration */ |
|
|
2605 | dSP; |
|
|
2606 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2607 | int items = SP - arg; /* args without function object */ |
|
|
2608 | SV *gv = *sp; |
|
|
2609 | |
|
|
2610 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2611 | /* for us, divert to the real entersub */ |
|
|
2612 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2613 | || !GvCV (gv) |
|
|
2614 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2615 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2616 | |
|
|
2617 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2618 | { |
|
|
2619 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2620 | AV *av = GvAV (PL_defgv); |
|
|
2621 | arg = AvARRAY (av); |
|
|
2622 | items = AvFILLp (av) + 1; |
|
|
2623 | } |
|
|
2624 | |
|
|
2625 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2626 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2627 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2628 | |
|
|
2629 | /* pop args */ |
|
|
2630 | SP = PL_stack_base + POPMARK; |
|
|
2631 | |
|
|
2632 | PUTBACK; |
|
|
2633 | } |
|
|
2634 | |
|
|
2635 | /* now that we have a slf_frame, interpret it! */ |
|
|
2636 | /* we use a callback system not to make the code needlessly */ |
|
|
2637 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2638 | |
|
|
2639 | do |
|
|
2640 | { |
|
|
2641 | struct coro_transfer_args ta; |
|
|
2642 | |
|
|
2643 | slf_frame.prepare (aTHX_ &ta); |
|
|
2644 | TRANSFER (ta, 0); |
|
|
2645 | |
|
|
2646 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2647 | } |
|
|
2648 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2649 | |
|
|
2650 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2651 | |
|
|
2652 | /* exception handling */ |
|
|
2653 | if (expect_false (CORO_THROW)) |
|
|
2654 | { |
|
|
2655 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2656 | |
|
|
2657 | CORO_THROW = 0; |
|
|
2658 | sv_setsv (ERRSV, exception); |
|
|
2659 | croak (0); |
|
|
2660 | } |
|
|
2661 | |
|
|
2662 | /* return value handling - mostly like entersub */ |
|
|
2663 | /* make sure we put something on the stack in scalar context */ |
|
|
2664 | if (GIMME_V == G_SCALAR |
|
|
2665 | && expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2666 | { |
|
|
2667 | dSP; |
|
|
2668 | SV **bot = PL_stack_base + checkmark; |
|
|
2669 | |
|
|
2670 | if (sp == bot) /* too few, push undef */ |
|
|
2671 | bot [1] = &PL_sv_undef; |
|
|
2672 | else /* too many, take last one */ |
|
|
2673 | bot [1] = *sp; |
|
|
2674 | |
|
|
2675 | SP = bot + 1; |
|
|
2676 | |
|
|
2677 | PUTBACK; |
|
|
2678 | } |
|
|
2679 | |
|
|
2680 | return NORMAL; |
|
|
2681 | } |
|
|
2682 | |
|
|
2683 | static void |
|
|
2684 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2685 | { |
|
|
2686 | int i; |
|
|
2687 | SV **arg = PL_stack_base + ax; |
|
|
2688 | int items = PL_stack_sp - arg + 1; |
|
|
2689 | |
|
|
2690 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2691 | |
|
|
2692 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2693 | && PL_op->op_ppaddr != pp_slf) |
|
|
2694 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2695 | |
|
|
2696 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2697 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2698 | slf_cv = cv; |
|
|
2699 | |
|
|
2700 | /* we patch the op, and then re-run the whole call */ |
|
|
2701 | /* we have to put the same argument on the stack for this to work */ |
|
|
2702 | /* and this will be done by pp_restore */ |
|
|
2703 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2704 | slf_restore.op_type = OP_CUSTOM; |
|
|
2705 | slf_restore.op_ppaddr = pp_restore; |
|
|
2706 | slf_restore.op_first = PL_op; |
|
|
2707 | |
|
|
2708 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2709 | |
|
|
2710 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2711 | { |
|
|
2712 | if (items > slf_arga) |
|
|
2713 | { |
|
|
2714 | slf_arga = items; |
|
|
2715 | Safefree (slf_argv); |
|
|
2716 | New (0, slf_argv, slf_arga, SV *); |
|
|
2717 | } |
|
|
2718 | |
|
|
2719 | slf_argc = items; |
|
|
2720 | |
|
|
2721 | for (i = 0; i < items; ++i) |
|
|
2722 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2723 | } |
|
|
2724 | else |
|
|
2725 | slf_argc = 0; |
|
|
2726 | |
|
|
2727 | PL_op->op_ppaddr = pp_slf; |
|
|
2728 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2729 | |
|
|
2730 | PL_op = (OP *)&slf_restore; |
|
|
2731 | } |
|
|
2732 | |
|
|
2733 | /*****************************************************************************/ |
|
|
2734 | /* dynamic wind */ |
|
|
2735 | |
|
|
2736 | static void |
|
|
2737 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2738 | { |
|
|
2739 | dSP; |
|
|
2740 | |
|
|
2741 | PUSHSTACK; |
|
|
2742 | |
|
|
2743 | PUSHMARK (SP); |
|
|
2744 | PUTBACK; |
|
|
2745 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2746 | SPAGAIN; |
|
|
2747 | |
|
|
2748 | POPSTACK; |
|
|
2749 | } |
|
|
2750 | |
|
|
2751 | static SV * |
|
|
2752 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2753 | { |
|
|
2754 | AV *av = *avp; |
|
|
2755 | SV *res = av_pop (av); |
|
|
2756 | |
|
|
2757 | if (AvFILLp (av) < 0) |
|
|
2758 | { |
|
|
2759 | *avp = 0; |
|
|
2760 | SvREFCNT_dec (av); |
|
|
2761 | } |
|
|
2762 | |
|
|
2763 | return res; |
|
|
2764 | } |
|
|
2765 | |
|
|
2766 | static void |
|
|
2767 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2768 | { |
|
|
2769 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2770 | SvREFCNT_dec (cb); |
|
|
2771 | } |
|
|
2772 | |
|
|
2773 | static void |
|
|
2774 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2775 | { |
|
|
2776 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2777 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
1723 | } |
2778 | } |
1724 | |
2779 | |
1725 | /*****************************************************************************/ |
2780 | /*****************************************************************************/ |
1726 | /* PerlIO::cede */ |
2781 | /* PerlIO::cede */ |
1727 | |
2782 | |
… | |
… | |
1796 | PerlIOBuf_get_cnt, |
2851 | PerlIOBuf_get_cnt, |
1797 | PerlIOBuf_set_ptrcnt, |
2852 | PerlIOBuf_set_ptrcnt, |
1798 | }; |
2853 | }; |
1799 | |
2854 | |
1800 | /*****************************************************************************/ |
2855 | /*****************************************************************************/ |
|
|
2856 | /* Coro::Semaphore & Coro::Signal */ |
1801 | |
2857 | |
1802 | static const CV *slf_cv; /* for quick consistency check */ |
|
|
1803 | |
|
|
1804 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1805 | static SV *slf_arg0; |
|
|
1806 | static SV *slf_arg1; |
|
|
1807 | static SV *slf_arg2; |
|
|
1808 | |
|
|
1809 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1810 | /* recreate the stack frame as perl will on following calls */ |
|
|
1811 | /* since entersub cleared the stack */ |
|
|
1812 | static OP * |
2858 | static SV * |
1813 | pp_restore (pTHX) |
2859 | coro_waitarray_new (pTHX_ int count) |
1814 | { |
2860 | { |
1815 | dSP; |
2861 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2862 | AV *av = newAV (); |
|
|
2863 | SV **ary; |
1816 | |
2864 | |
1817 | PUSHMARK (SP); |
2865 | /* unfortunately, building manually saves memory */ |
|
|
2866 | Newx (ary, 2, SV *); |
|
|
2867 | AvALLOC (av) = ary; |
|
|
2868 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2869 | AvARRAY (av) = ary; |
|
|
2870 | #else |
|
|
2871 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2872 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2873 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2874 | #endif |
|
|
2875 | AvMAX (av) = 1; |
|
|
2876 | AvFILLp (av) = 0; |
|
|
2877 | ary [0] = newSViv (count); |
1818 | |
2878 | |
1819 | EXTEND (SP, 3); |
2879 | return newRV_noinc ((SV *)av); |
1820 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
|
|
1821 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
|
|
1822 | if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
|
|
1823 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1824 | |
|
|
1825 | RETURNOP (slf_restore.op_first); |
|
|
1826 | } |
2880 | } |
1827 | |
2881 | |
1828 | static void |
2882 | /* semaphore */ |
1829 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1830 | { |
|
|
1831 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1832 | } |
|
|
1833 | |
2883 | |
1834 | static void |
2884 | static void |
1835 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2885 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
1836 | { |
2886 | { |
1837 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
2887 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2888 | IV count = SvIVX (count_sv); |
1838 | |
2889 | |
1839 | frame->prepare = slf_prepare_set_stacklevel; |
2890 | count += adjust; |
1840 | frame->check = slf_check_nop; |
2891 | SvIVX (count_sv) = count; |
1841 | frame->data = (void *)SvIV (arg [0]); |
|
|
1842 | } |
|
|
1843 | |
2892 | |
1844 | static void |
2893 | /* now wake up as many waiters as are expected to lock */ |
1845 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
2894 | while (count > 0 && AvFILLp (av) > 0) |
1846 | { |
|
|
1847 | SV **arg = (SV **)slf_frame.data; |
|
|
1848 | |
|
|
1849 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1850 | } |
|
|
1851 | |
|
|
1852 | static void |
|
|
1853 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1854 | { |
|
|
1855 | if (items != 2) |
|
|
1856 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1857 | |
|
|
1858 | frame->prepare = slf_prepare_transfer; |
|
|
1859 | frame->check = slf_check_nop; |
|
|
1860 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1861 | } |
|
|
1862 | |
|
|
1863 | static void |
|
|
1864 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1865 | { |
|
|
1866 | frame->prepare = prepare_schedule; |
|
|
1867 | frame->check = slf_check_nop; |
|
|
1868 | } |
|
|
1869 | |
|
|
1870 | static void |
|
|
1871 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1872 | { |
|
|
1873 | frame->prepare = prepare_cede; |
|
|
1874 | frame->check = slf_check_nop; |
|
|
1875 | } |
|
|
1876 | |
|
|
1877 | static void |
|
|
1878 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1879 | { |
|
|
1880 | frame->prepare = prepare_cede_notself; |
|
|
1881 | frame->check = slf_check_nop; |
|
|
1882 | } |
|
|
1883 | |
|
|
1884 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1885 | #define CVf_SLF 0x4000 |
|
|
1886 | |
|
|
1887 | /* |
|
|
1888 | * these not obviously related functions are all rolled into one |
|
|
1889 | * function to increase chances that they all will call transfer with the same |
|
|
1890 | * stack offset |
|
|
1891 | * SLF stands for "schedule-like-function". |
|
|
1892 | */ |
|
|
1893 | static OP * |
|
|
1894 | pp_slf (pTHX) |
|
|
1895 | { |
|
|
1896 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1897 | |
|
|
1898 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1899 | /* the latter happens when a new coro has been started */ |
|
|
1900 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1901 | if (expect_true (!slf_frame.prepare)) |
|
|
1902 | { |
2895 | { |
1903 | /* first iteration */ |
2896 | SV *cb; |
1904 | dSP; |
|
|
1905 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1906 | int items = SP - arg; /* args without function object */ |
|
|
1907 | SV *gv = *sp; |
|
|
1908 | |
2897 | |
1909 | /* do a quick consistency check on the "function" object, and if it isn't */ |
2898 | /* swap first two elements so we can shift a waiter */ |
1910 | /* for us, divert to the real entersub */ |
2899 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
1911 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
2900 | AvARRAY (av)[1] = count_sv; |
1912 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
2901 | cb = av_shift (av); |
1913 | |
2902 | |
1914 | /* pop args */ |
2903 | if (SvOBJECT (cb)) |
1915 | SP = PL_stack_base + POPMARK; |
|
|
1916 | |
|
|
1917 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1918 | { |
2904 | { |
1919 | /* ampersand-form of call, use @_ instead of stack */ |
2905 | api_ready (aTHX_ cb); |
1920 | AV *av = GvAV (PL_defgv); |
2906 | --count; |
1921 | arg = AvARRAY (av); |
|
|
1922 | items = AvFILLp (av) + 1; |
|
|
1923 | } |
2907 | } |
1924 | |
2908 | else if (SvTYPE (cb) == SVt_PVCV) |
1925 | PUTBACK; |
|
|
1926 | |
|
|
1927 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1928 | } |
|
|
1929 | |
|
|
1930 | /* now interpret the slf_frame */ |
|
|
1931 | /* we use a callback system not to make the code needlessly */ |
|
|
1932 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1933 | |
|
|
1934 | do |
|
|
1935 | { |
|
|
1936 | struct coro_transfer_args ta; |
|
|
1937 | |
|
|
1938 | slf_frame.prepare (aTHX_ &ta); |
|
|
1939 | TRANSFER (ta, 0); |
|
|
1940 | |
|
|
1941 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1942 | } |
|
|
1943 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1944 | |
|
|
1945 | { |
|
|
1946 | dSP; |
|
|
1947 | SV **bot = PL_stack_base + checkmark; |
|
|
1948 | int gimme = GIMME_V; |
|
|
1949 | |
|
|
1950 | slf_frame.prepare = 0; /* signal pp_slf that we need a new frame */ |
|
|
1951 | |
|
|
1952 | /* make sure we put something on the stack in scalar context */ |
|
|
1953 | if (gimme == G_SCALAR) |
|
|
1954 | { |
2909 | { |
1955 | if (sp == bot) |
2910 | dSP; |
1956 | XPUSHs (&PL_sv_undef); |
2911 | PUSHMARK (SP); |
1957 | |
2912 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
1958 | SP = bot + 1; |
2913 | PUTBACK; |
|
|
2914 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
1959 | } |
2915 | } |
1960 | |
2916 | |
1961 | PUTBACK; |
2917 | SvREFCNT_dec (cb); |
1962 | } |
2918 | } |
1963 | |
|
|
1964 | return NORMAL; |
|
|
1965 | } |
2919 | } |
1966 | |
2920 | |
1967 | static void |
2921 | static void |
1968 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, SV **arg, int items) |
2922 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
1969 | { |
2923 | { |
1970 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
2924 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
1971 | |
2925 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
1972 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1973 | && PL_op->op_ppaddr != pp_slf) |
|
|
1974 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1975 | |
|
|
1976 | if (items > 3) |
|
|
1977 | croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items); |
|
|
1978 | |
|
|
1979 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1980 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1981 | slf_cv = cv; |
|
|
1982 | |
|
|
1983 | /* we patch the op, and then re-run the whole call */ |
|
|
1984 | /* we have to put the same argument on the stack for this to work */ |
|
|
1985 | /* and this will be done by pp_restore */ |
|
|
1986 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1987 | slf_restore.op_type = OP_NULL; |
|
|
1988 | slf_restore.op_ppaddr = pp_restore; |
|
|
1989 | slf_restore.op_first = PL_op; |
|
|
1990 | |
|
|
1991 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
|
|
1992 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
|
|
1993 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
|
|
1994 | |
|
|
1995 | PL_op->op_ppaddr = pp_slf; |
|
|
1996 | |
|
|
1997 | PL_op = (OP *)&slf_restore; |
|
|
1998 | } |
2926 | } |
1999 | |
|
|
2000 | /*****************************************************************************/ |
|
|
2001 | |
2927 | |
2002 | static int |
2928 | static int |
2003 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
2929 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2004 | { |
2930 | { |
2005 | AV *av = (AV *)frame->data; |
2931 | AV *av = (AV *)frame->data; |
2006 | SV *count_sv = AvARRAY (av)[0]; |
2932 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2933 | SV *coro_hv = SvRV (coro_current); |
2007 | |
2934 | |
|
|
2935 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2936 | if (CORO_THROW) |
|
|
2937 | return 0; |
2008 | if (SvIVX (count_sv) > 0) |
2938 | else if (SvIVX (count_sv) > 0) |
2009 | { |
2939 | { |
|
|
2940 | frame->destroy = 0; |
|
|
2941 | |
|
|
2942 | if (acquire) |
2010 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2943 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2944 | else |
|
|
2945 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2946 | |
2011 | return 0; |
2947 | return 0; |
2012 | } |
2948 | } |
2013 | else |
2949 | else |
2014 | { |
2950 | { |
2015 | int i; |
2951 | int i; |
2016 | /* if we were woken up but can't down, we look through the whole */ |
2952 | /* if we were woken up but can't down, we look through the whole */ |
2017 | /* waiters list and only add us if we aren't in there already */ |
2953 | /* waiters list and only add us if we aren't in there already */ |
2018 | /* this avoids some degenerate memory usage cases */ |
2954 | /* this avoids some degenerate memory usage cases */ |
2019 | |
2955 | for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug |
2020 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2021 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
2956 | if (AvARRAY (av)[i] == coro_hv) |
2022 | return 1; |
2957 | return 1; |
2023 | |
2958 | |
2024 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2959 | av_push (av, SvREFCNT_inc (coro_hv)); |
2025 | return 1; |
2960 | return 1; |
2026 | } |
2961 | } |
2027 | } |
2962 | } |
2028 | |
2963 | |
2029 | static void |
2964 | static int |
|
|
2965 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2966 | { |
|
|
2967 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2968 | } |
|
|
2969 | |
|
|
2970 | static int |
|
|
2971 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2972 | { |
|
|
2973 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2974 | } |
|
|
2975 | |
|
|
2976 | static void |
2030 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2977 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2031 | { |
2978 | { |
2032 | AV *av = (AV *)SvRV (arg [0]); |
2979 | AV *av = (AV *)SvRV (arg [0]); |
2033 | |
2980 | |
2034 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2981 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2035 | { |
2982 | { |
… | |
… | |
2040 | { |
2987 | { |
2041 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2988 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2042 | |
2989 | |
2043 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2990 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2044 | frame->prepare = prepare_schedule; |
2991 | frame->prepare = prepare_schedule; |
|
|
2992 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2993 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2994 | frame->destroy = coro_semaphore_destroy; |
2045 | } |
2995 | } |
|
|
2996 | } |
2046 | |
2997 | |
|
|
2998 | static void |
|
|
2999 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3000 | { |
|
|
3001 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
2047 | frame->check = slf_check_semaphore_down; |
3002 | frame->check = slf_check_semaphore_down; |
|
|
3003 | } |
2048 | |
3004 | |
|
|
3005 | static void |
|
|
3006 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3007 | { |
|
|
3008 | if (items >= 2) |
|
|
3009 | { |
|
|
3010 | /* callback form */ |
|
|
3011 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3012 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3013 | |
|
|
3014 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3015 | |
|
|
3016 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3017 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3018 | |
|
|
3019 | frame->prepare = prepare_nop; |
|
|
3020 | frame->check = slf_check_nop; |
|
|
3021 | } |
|
|
3022 | else |
|
|
3023 | { |
|
|
3024 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3025 | frame->check = slf_check_semaphore_wait; |
|
|
3026 | } |
|
|
3027 | } |
|
|
3028 | |
|
|
3029 | /* signal */ |
|
|
3030 | |
|
|
3031 | static void |
|
|
3032 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3033 | { |
|
|
3034 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3035 | |
|
|
3036 | /* now signal count waiters */ |
|
|
3037 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3038 | { |
|
|
3039 | SV *cb; |
|
|
3040 | |
|
|
3041 | /* swap first two elements so we can shift a waiter */ |
|
|
3042 | cb = AvARRAY (av)[0]; |
|
|
3043 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3044 | AvARRAY (av)[1] = cb; |
|
|
3045 | |
|
|
3046 | cb = av_shift (av); |
|
|
3047 | |
|
|
3048 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
3049 | { |
|
|
3050 | dSP; |
|
|
3051 | PUSHMARK (SP); |
|
|
3052 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
3053 | PUTBACK; |
|
|
3054 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
3055 | } |
|
|
3056 | else |
|
|
3057 | { |
|
|
3058 | api_ready (aTHX_ cb); |
|
|
3059 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3060 | } |
|
|
3061 | |
|
|
3062 | SvREFCNT_dec (cb); |
|
|
3063 | |
|
|
3064 | --count; |
|
|
3065 | } |
|
|
3066 | } |
|
|
3067 | |
|
|
3068 | static int |
|
|
3069 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
3070 | { |
|
|
3071 | /* if we are about to throw, also stop waiting */ |
|
|
3072 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3073 | } |
|
|
3074 | |
|
|
3075 | static void |
|
|
3076 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3077 | { |
|
|
3078 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3079 | |
|
|
3080 | if (items >= 2) |
|
|
3081 | { |
|
|
3082 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3083 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3084 | |
|
|
3085 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3086 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3087 | |
|
|
3088 | frame->prepare = prepare_nop; |
|
|
3089 | frame->check = slf_check_nop; |
|
|
3090 | } |
|
|
3091 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
3092 | { |
|
|
3093 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3094 | frame->prepare = prepare_nop; |
|
|
3095 | frame->check = slf_check_nop; |
|
|
3096 | } |
|
|
3097 | else |
|
|
3098 | { |
|
|
3099 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3100 | |
|
|
3101 | av_push (av, waiter); |
|
|
3102 | |
|
|
3103 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3104 | frame->prepare = prepare_schedule; |
|
|
3105 | frame->check = slf_check_signal_wait; |
|
|
3106 | } |
2049 | } |
3107 | } |
2050 | |
3108 | |
2051 | /*****************************************************************************/ |
3109 | /*****************************************************************************/ |
|
|
3110 | /* Coro::AIO */ |
2052 | |
3111 | |
2053 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
3112 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
2054 | |
3113 | |
2055 | /* create a closure from XS, returns a code reference */ |
3114 | /* helper storage struct */ |
2056 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
3115 | struct io_state |
2057 | /* the callback must use dXSARGS/XSRETURN */ |
3116 | { |
|
|
3117 | int errorno; |
|
|
3118 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3119 | int laststatval; |
|
|
3120 | Stat_t statcache; |
|
|
3121 | }; |
|
|
3122 | |
|
|
3123 | static void |
|
|
3124 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3125 | { |
|
|
3126 | dXSARGS; |
|
|
3127 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3128 | SV *coro = av_pop (state); |
|
|
3129 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3130 | |
|
|
3131 | av_extend (state, items - 1); |
|
|
3132 | |
|
|
3133 | sv_upgrade (data_sv, SVt_PV); |
|
|
3134 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3135 | SvPOK_only (data_sv); |
|
|
3136 | |
|
|
3137 | { |
|
|
3138 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3139 | |
|
|
3140 | data->errorno = errno; |
|
|
3141 | data->laststype = PL_laststype; |
|
|
3142 | data->laststatval = PL_laststatval; |
|
|
3143 | data->statcache = PL_statcache; |
|
|
3144 | } |
|
|
3145 | |
|
|
3146 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3147 | { |
|
|
3148 | int i; |
|
|
3149 | |
|
|
3150 | for (i = 0; i < items; ++i) |
|
|
3151 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3152 | } |
|
|
3153 | |
|
|
3154 | av_push (state, data_sv); |
|
|
3155 | |
|
|
3156 | api_ready (aTHX_ coro); |
|
|
3157 | SvREFCNT_dec (coro); |
|
|
3158 | SvREFCNT_dec ((AV *)state); |
|
|
3159 | } |
|
|
3160 | |
|
|
3161 | static int |
|
|
3162 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3163 | { |
|
|
3164 | AV *state = (AV *)frame->data; |
|
|
3165 | |
|
|
3166 | /* if we are about to throw, return early */ |
|
|
3167 | /* this does not cancel the aio request, but at least */ |
|
|
3168 | /* it quickly returns */ |
|
|
3169 | if (CORO_THROW) |
|
|
3170 | return 0; |
|
|
3171 | |
|
|
3172 | /* one element that is an RV? repeat! */ |
|
|
3173 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
3174 | return 1; |
|
|
3175 | |
|
|
3176 | /* restore status */ |
|
|
3177 | { |
|
|
3178 | SV *data_sv = av_pop (state); |
|
|
3179 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3180 | |
|
|
3181 | errno = data->errorno; |
|
|
3182 | PL_laststype = data->laststype; |
|
|
3183 | PL_laststatval = data->laststatval; |
|
|
3184 | PL_statcache = data->statcache; |
|
|
3185 | |
|
|
3186 | SvREFCNT_dec (data_sv); |
|
|
3187 | } |
|
|
3188 | |
|
|
3189 | /* push result values */ |
|
|
3190 | { |
|
|
3191 | dSP; |
|
|
3192 | int i; |
|
|
3193 | |
|
|
3194 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3195 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3196 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3197 | |
|
|
3198 | PUTBACK; |
|
|
3199 | } |
|
|
3200 | |
|
|
3201 | return 0; |
|
|
3202 | } |
|
|
3203 | |
|
|
3204 | static void |
|
|
3205 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3206 | { |
|
|
3207 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
3208 | SV *coro_hv = SvRV (coro_current); |
|
|
3209 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
3210 | |
|
|
3211 | /* put our coroutine id on the state arg */ |
|
|
3212 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
3213 | |
|
|
3214 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3215 | if (coro->prio) |
|
|
3216 | { |
|
|
3217 | dSP; |
|
|
3218 | |
|
|
3219 | static SV *prio_cv; |
|
|
3220 | static SV *prio_sv; |
|
|
3221 | |
|
|
3222 | if (expect_false (!prio_cv)) |
|
|
3223 | { |
|
|
3224 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3225 | prio_sv = newSViv (0); |
|
|
3226 | } |
|
|
3227 | |
|
|
3228 | PUSHMARK (SP); |
|
|
3229 | sv_setiv (prio_sv, coro->prio); |
|
|
3230 | XPUSHs (prio_sv); |
|
|
3231 | |
|
|
3232 | PUTBACK; |
|
|
3233 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3234 | } |
|
|
3235 | |
|
|
3236 | /* now call the original request */ |
|
|
3237 | { |
|
|
3238 | dSP; |
|
|
3239 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3240 | int i; |
|
|
3241 | |
|
|
3242 | PUSHMARK (SP); |
|
|
3243 | |
|
|
3244 | /* first push all args to the stack */ |
|
|
3245 | EXTEND (SP, items + 1); |
|
|
3246 | |
|
|
3247 | for (i = 0; i < items; ++i) |
|
|
3248 | PUSHs (arg [i]); |
|
|
3249 | |
|
|
3250 | /* now push the callback closure */ |
|
|
3251 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3252 | |
|
|
3253 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3254 | PUTBACK; |
|
|
3255 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3256 | } |
|
|
3257 | |
|
|
3258 | /* now that the request is going, we loop till we have a result */ |
|
|
3259 | frame->data = (void *)state; |
|
|
3260 | frame->prepare = prepare_schedule; |
|
|
3261 | frame->check = slf_check_aio_req; |
|
|
3262 | } |
|
|
3263 | |
|
|
3264 | static void |
|
|
3265 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3266 | { |
|
|
3267 | dXSARGS; |
|
|
3268 | |
|
|
3269 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3270 | |
|
|
3271 | XSRETURN_EMPTY; |
|
|
3272 | } |
|
|
3273 | |
|
|
3274 | /*****************************************************************************/ |
|
|
3275 | |
|
|
3276 | #if CORO_CLONE |
|
|
3277 | # include "clone.c" |
|
|
3278 | #endif |
|
|
3279 | |
|
|
3280 | /*****************************************************************************/ |
|
|
3281 | |
2058 | static SV * |
3282 | static SV * |
2059 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
3283 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
2060 | { |
3284 | { |
2061 | CV *cv = (CV *)NEWSV (0, 0); |
3285 | SV *coro_sv; |
|
|
3286 | struct coro *coro; |
|
|
3287 | MAGIC *mg; |
|
|
3288 | HV *hv; |
|
|
3289 | SV *cb; |
|
|
3290 | int i; |
2062 | |
3291 | |
2063 | sv_upgrade ((SV *)cv, SVt_PVCV); |
3292 | if (argc > 0) |
|
|
3293 | { |
|
|
3294 | cb = s_get_cv_croak (argv [0]); |
2064 | |
3295 | |
2065 | CvANON_on (cv); |
3296 | if (!is_coro) |
2066 | CvISXSUB_on (cv); |
3297 | { |
2067 | CvXSUB (cv) = xsub; |
3298 | if (CvISXSUB (cb)) |
2068 | GENSUB_ARG = arg; |
3299 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
2069 | |
3300 | |
2070 | return newRV_noinc ((SV *)cv); |
3301 | if (!CvROOT (cb)) |
2071 | } |
3302 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3303 | } |
|
|
3304 | } |
2072 | |
3305 | |
2073 | /*****************************************************************************/ |
3306 | Newz (0, coro, 1, struct coro); |
|
|
3307 | coro->args = newAV (); |
|
|
3308 | coro->flags = CF_NEW; |
|
|
3309 | |
|
|
3310 | if (coro_first) coro_first->prev = coro; |
|
|
3311 | coro->next = coro_first; |
|
|
3312 | coro_first = coro; |
|
|
3313 | |
|
|
3314 | coro->hv = hv = newHV (); |
|
|
3315 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3316 | mg->mg_flags |= MGf_DUP; |
|
|
3317 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3318 | |
|
|
3319 | if (argc > 0) |
|
|
3320 | { |
|
|
3321 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3322 | |
|
|
3323 | if (is_coro) |
|
|
3324 | { |
|
|
3325 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3326 | cb = (SV *)cv_coro_run; |
|
|
3327 | } |
|
|
3328 | |
|
|
3329 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3330 | |
|
|
3331 | for (i = 1; i < argc; i++) |
|
|
3332 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3333 | } |
|
|
3334 | |
|
|
3335 | return coro_sv; |
|
|
3336 | } |
2074 | |
3337 | |
2075 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3338 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2076 | |
3339 | |
2077 | PROTOTYPES: DISABLE |
3340 | PROTOTYPES: DISABLE |
2078 | |
3341 | |
2079 | BOOT: |
3342 | BOOT: |
2080 | { |
3343 | { |
2081 | #ifdef USE_ITHREADS |
3344 | #ifdef USE_ITHREADS |
2082 | MUTEX_INIT (&coro_lock); |
|
|
2083 | # if CORO_PTHREAD |
3345 | # if CORO_PTHREAD |
2084 | coro_thx = PERL_GET_CONTEXT; |
3346 | coro_thx = PERL_GET_CONTEXT; |
2085 | # endif |
3347 | # endif |
2086 | #endif |
3348 | #endif |
2087 | BOOT_PAGESIZE; |
3349 | BOOT_PAGESIZE; |
2088 | |
3350 | |
|
|
3351 | cctx_current = cctx_new_empty (); |
|
|
3352 | |
2089 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3353 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2090 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3354 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2091 | |
3355 | |
2092 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
3356 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
2093 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
3357 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
… | |
… | |
2107 | main_mainstack = PL_mainstack; |
3371 | main_mainstack = PL_mainstack; |
2108 | main_top_env = PL_top_env; |
3372 | main_top_env = PL_top_env; |
2109 | |
3373 | |
2110 | while (main_top_env->je_prev) |
3374 | while (main_top_env->je_prev) |
2111 | main_top_env = main_top_env->je_prev; |
3375 | main_top_env = main_top_env->je_prev; |
|
|
3376 | |
|
|
3377 | { |
|
|
3378 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
3379 | |
|
|
3380 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
3381 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
3382 | |
|
|
3383 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3384 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
3385 | } |
2112 | |
3386 | |
2113 | coroapi.ver = CORO_API_VERSION; |
3387 | coroapi.ver = CORO_API_VERSION; |
2114 | coroapi.rev = CORO_API_REVISION; |
3388 | coroapi.rev = CORO_API_REVISION; |
2115 | |
3389 | |
2116 | coroapi.transfer = api_transfer; |
3390 | coroapi.transfer = api_transfer; |
… | |
… | |
2120 | coroapi.prepare_nop = prepare_nop; |
3394 | coroapi.prepare_nop = prepare_nop; |
2121 | coroapi.prepare_schedule = prepare_schedule; |
3395 | coroapi.prepare_schedule = prepare_schedule; |
2122 | coroapi.prepare_cede = prepare_cede; |
3396 | coroapi.prepare_cede = prepare_cede; |
2123 | coroapi.prepare_cede_notself = prepare_cede_notself; |
3397 | coroapi.prepare_cede_notself = prepare_cede_notself; |
2124 | |
3398 | |
2125 | { |
3399 | time_init (aTHX); |
2126 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2127 | |
3400 | |
2128 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2129 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2130 | |
|
|
2131 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2132 | } |
|
|
2133 | |
|
|
2134 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3401 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
2135 | } |
3402 | } |
2136 | |
3403 | |
2137 | SV * |
3404 | SV * |
2138 | new (char *klass, ...) |
3405 | new (SV *klass, ...) |
|
|
3406 | ALIAS: |
|
|
3407 | Coro::new = 1 |
2139 | CODE: |
3408 | CODE: |
2140 | { |
3409 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
2141 | struct coro *coro; |
3410 | OUTPUT: |
2142 | MAGIC *mg; |
|
|
2143 | HV *hv; |
|
|
2144 | int i; |
|
|
2145 | |
|
|
2146 | Newz (0, coro, 1, struct coro); |
|
|
2147 | coro->args = newAV (); |
|
|
2148 | coro->flags = CF_NEW; |
|
|
2149 | |
|
|
2150 | if (coro_first) coro_first->prev = coro; |
|
|
2151 | coro->next = coro_first; |
|
|
2152 | coro_first = coro; |
|
|
2153 | |
|
|
2154 | coro->hv = hv = newHV (); |
|
|
2155 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2156 | mg->mg_flags |= MGf_DUP; |
|
|
2157 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
2158 | |
|
|
2159 | av_extend (coro->args, items - 1); |
|
|
2160 | for (i = 1; i < items; i++) |
|
|
2161 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2162 | } |
|
|
2163 | OUTPUT: |
|
|
2164 | RETVAL |
3411 | RETVAL |
2165 | |
|
|
2166 | void |
|
|
2167 | _set_stacklevel (...) |
|
|
2168 | CODE: |
|
|
2169 | api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); |
|
|
2170 | |
3412 | |
2171 | void |
3413 | void |
2172 | transfer (...) |
3414 | transfer (...) |
2173 | PROTOTYPE: $$ |
3415 | PROTOTYPE: $$ |
2174 | CODE: |
3416 | CODE: |
2175 | api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); |
3417 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2176 | |
|
|
2177 | bool |
|
|
2178 | _destroy (SV *coro_sv) |
|
|
2179 | CODE: |
|
|
2180 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
2181 | OUTPUT: |
|
|
2182 | RETVAL |
|
|
2183 | |
3418 | |
2184 | void |
3419 | void |
2185 | _exit (int code) |
3420 | _exit (int code) |
2186 | PROTOTYPE: $ |
3421 | PROTOTYPE: $ |
2187 | CODE: |
3422 | CODE: |
2188 | _exit (code); |
3423 | _exit (code); |
|
|
3424 | |
|
|
3425 | SV * |
|
|
3426 | clone (Coro::State coro) |
|
|
3427 | CODE: |
|
|
3428 | { |
|
|
3429 | #if CORO_CLONE |
|
|
3430 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3431 | MAGIC *mg; |
|
|
3432 | /* TODO: too much duplication */ |
|
|
3433 | ncoro->hv = newHV (); |
|
|
3434 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3435 | mg->mg_flags |= MGf_DUP; |
|
|
3436 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3437 | #else |
|
|
3438 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3439 | #endif |
|
|
3440 | } |
|
|
3441 | OUTPUT: |
|
|
3442 | RETVAL |
2189 | |
3443 | |
2190 | int |
3444 | int |
2191 | cctx_stacksize (int new_stacksize = 0) |
3445 | cctx_stacksize (int new_stacksize = 0) |
2192 | PROTOTYPE: ;$ |
3446 | PROTOTYPE: ;$ |
2193 | CODE: |
3447 | CODE: |
… | |
… | |
2243 | eval = 1 |
3497 | eval = 1 |
2244 | CODE: |
3498 | CODE: |
2245 | { |
3499 | { |
2246 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3500 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
2247 | { |
3501 | { |
2248 | struct coro temp; |
3502 | struct coro *current = SvSTATE_current; |
|
|
3503 | struct CoroSLF slf_save; |
2249 | |
3504 | |
2250 | if (!(coro->flags & CF_RUNNING)) |
3505 | if (current != coro) |
2251 | { |
3506 | { |
2252 | PUTBACK; |
3507 | PUTBACK; |
2253 | save_perl (aTHX_ &temp); |
3508 | save_perl (aTHX_ current); |
2254 | load_perl (aTHX_ coro); |
3509 | load_perl (aTHX_ coro); |
|
|
3510 | /* the coro is most likely in an active SLF call. |
|
|
3511 | * while not strictly required (the code we execute is |
|
|
3512 | * not allowed to call any SLF functions), it's cleaner |
|
|
3513 | * to reinitialise the slf_frame and restore it later. |
|
|
3514 | * This might one day allow us to actually do SLF calls |
|
|
3515 | * from code executed here. |
|
|
3516 | */ |
|
|
3517 | slf_save = slf_frame; |
|
|
3518 | slf_frame.prepare = 0; |
|
|
3519 | SPAGAIN; |
2255 | } |
3520 | } |
2256 | |
3521 | |
2257 | { |
|
|
2258 | dSP; |
|
|
2259 | ENTER; |
|
|
2260 | SAVETMPS; |
|
|
2261 | PUTBACK; |
|
|
2262 | PUSHSTACK; |
3522 | PUSHSTACK; |
|
|
3523 | |
2263 | PUSHMARK (SP); |
3524 | PUSHMARK (SP); |
|
|
3525 | PUTBACK; |
2264 | |
3526 | |
2265 | if (ix) |
3527 | if (ix) |
2266 | eval_sv (coderef, 0); |
3528 | eval_sv (coderef, 0); |
2267 | else |
3529 | else |
2268 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3530 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2269 | |
3531 | |
2270 | POPSTACK; |
3532 | POPSTACK; |
2271 | SPAGAIN; |
3533 | SPAGAIN; |
2272 | FREETMPS; |
|
|
2273 | LEAVE; |
|
|
2274 | PUTBACK; |
|
|
2275 | } |
|
|
2276 | |
3534 | |
2277 | if (!(coro->flags & CF_RUNNING)) |
3535 | if (current != coro) |
2278 | { |
3536 | { |
|
|
3537 | PUTBACK; |
|
|
3538 | slf_frame = slf_save; |
2279 | save_perl (aTHX_ coro); |
3539 | save_perl (aTHX_ coro); |
2280 | load_perl (aTHX_ &temp); |
3540 | load_perl (aTHX_ current); |
2281 | SPAGAIN; |
3541 | SPAGAIN; |
2282 | } |
3542 | } |
2283 | } |
3543 | } |
2284 | } |
3544 | } |
2285 | |
3545 | |
… | |
… | |
2288 | PROTOTYPE: $ |
3548 | PROTOTYPE: $ |
2289 | ALIAS: |
3549 | ALIAS: |
2290 | is_ready = CF_READY |
3550 | is_ready = CF_READY |
2291 | is_running = CF_RUNNING |
3551 | is_running = CF_RUNNING |
2292 | is_new = CF_NEW |
3552 | is_new = CF_NEW |
2293 | is_destroyed = CF_DESTROYED |
3553 | is_destroyed = CF_ZOMBIE |
|
|
3554 | is_zombie = CF_ZOMBIE |
|
|
3555 | is_suspended = CF_SUSPENDED |
2294 | CODE: |
3556 | CODE: |
2295 | RETVAL = boolSV (coro->flags & ix); |
3557 | RETVAL = boolSV (coro->flags & ix); |
2296 | OUTPUT: |
3558 | OUTPUT: |
2297 | RETVAL |
3559 | RETVAL |
2298 | |
3560 | |
2299 | void |
3561 | void |
2300 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3562 | throw (Coro::State self, SV *exception = &PL_sv_undef) |
2301 | PROTOTYPE: $;$ |
3563 | PROTOTYPE: $;$ |
2302 | CODE: |
3564 | CODE: |
|
|
3565 | { |
|
|
3566 | struct coro *current = SvSTATE_current; |
|
|
3567 | SV **exceptionp = self == current ? &CORO_THROW : &self->except; |
2303 | SvREFCNT_dec (self->throw); |
3568 | SvREFCNT_dec (*exceptionp); |
2304 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
3569 | SvGETMAGIC (exception); |
|
|
3570 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3571 | } |
2305 | |
3572 | |
2306 | void |
3573 | void |
2307 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3574 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2308 | PROTOTYPE: $;$ |
3575 | PROTOTYPE: $;$ |
2309 | C_ARGS: aTHX_ coro, flags |
3576 | C_ARGS: aTHX_ coro, flags |
2310 | |
3577 | |
2311 | SV * |
3578 | SV * |
2312 | has_cctx (Coro::State coro) |
3579 | has_cctx (Coro::State coro) |
2313 | PROTOTYPE: $ |
3580 | PROTOTYPE: $ |
2314 | CODE: |
3581 | CODE: |
2315 | RETVAL = boolSV (!!coro->cctx); |
3582 | /* maybe manage the running flag differently */ |
|
|
3583 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
2316 | OUTPUT: |
3584 | OUTPUT: |
2317 | RETVAL |
3585 | RETVAL |
2318 | |
3586 | |
2319 | int |
3587 | int |
2320 | is_traced (Coro::State coro) |
3588 | is_traced (Coro::State coro) |
… | |
… | |
2340 | |
3608 | |
2341 | void |
3609 | void |
2342 | force_cctx () |
3610 | force_cctx () |
2343 | PROTOTYPE: |
3611 | PROTOTYPE: |
2344 | CODE: |
3612 | CODE: |
2345 | struct coro *coro = SvSTATE (coro_current); |
|
|
2346 | coro->cctx->idle_sp = 0; |
3613 | cctx_current->idle_sp = 0; |
2347 | |
3614 | |
2348 | void |
3615 | void |
2349 | swap_defsv (Coro::State self) |
3616 | swap_defsv (Coro::State self) |
2350 | PROTOTYPE: $ |
3617 | PROTOTYPE: $ |
2351 | ALIAS: |
3618 | ALIAS: |
… | |
… | |
2359 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3626 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2360 | |
3627 | |
2361 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3628 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2362 | } |
3629 | } |
2363 | |
3630 | |
|
|
3631 | void |
|
|
3632 | cancel (Coro::State self) |
|
|
3633 | CODE: |
|
|
3634 | coro_state_destroy (aTHX_ self); |
|
|
3635 | |
|
|
3636 | SV * |
|
|
3637 | enable_times (int enabled = enable_times) |
|
|
3638 | CODE: |
|
|
3639 | { |
|
|
3640 | RETVAL = boolSV (enable_times); |
|
|
3641 | |
|
|
3642 | if (enabled != enable_times) |
|
|
3643 | { |
|
|
3644 | enable_times = enabled; |
|
|
3645 | |
|
|
3646 | coro_times_update (); |
|
|
3647 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3648 | } |
|
|
3649 | } |
|
|
3650 | OUTPUT: |
|
|
3651 | RETVAL |
|
|
3652 | |
|
|
3653 | void |
|
|
3654 | times (Coro::State self) |
|
|
3655 | PPCODE: |
|
|
3656 | { |
|
|
3657 | struct coro *current = SvSTATE (coro_current); |
|
|
3658 | |
|
|
3659 | if (expect_false (current == self)) |
|
|
3660 | { |
|
|
3661 | coro_times_update (); |
|
|
3662 | coro_times_add (SvSTATE (coro_current)); |
|
|
3663 | } |
|
|
3664 | |
|
|
3665 | EXTEND (SP, 2); |
|
|
3666 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3667 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3668 | |
|
|
3669 | if (expect_false (current == self)) |
|
|
3670 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3671 | } |
|
|
3672 | |
|
|
3673 | void |
|
|
3674 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
|
|
3675 | CODE: |
|
|
3676 | { |
|
|
3677 | struct coro *current = SvSTATE_current; |
|
|
3678 | |
|
|
3679 | if (current == coro) |
|
|
3680 | SWAP_SVS (current); |
|
|
3681 | |
|
|
3682 | if (!coro->swap_sv) |
|
|
3683 | coro->swap_sv = newAV (); |
|
|
3684 | |
|
|
3685 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); |
|
|
3686 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); |
|
|
3687 | |
|
|
3688 | if (current == coro) |
|
|
3689 | SWAP_SVS (current); |
|
|
3690 | } |
|
|
3691 | |
|
|
3692 | |
2364 | MODULE = Coro::State PACKAGE = Coro |
3693 | MODULE = Coro::State PACKAGE = Coro |
2365 | |
3694 | |
2366 | BOOT: |
3695 | BOOT: |
2367 | { |
3696 | { |
2368 | int i; |
|
|
2369 | |
|
|
2370 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2371 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3697 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2372 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3698 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2373 | |
3699 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
2374 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3700 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2375 | SvREADONLY_on (coro_current); |
3701 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3702 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3703 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3704 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
2376 | |
3705 | |
|
|
3706 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3707 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3708 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3709 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
|
|
3710 | |
2377 | coro_stash = gv_stashpv ("Coro", TRUE); |
3711 | coro_stash = gv_stashpv ("Coro", TRUE); |
2378 | |
3712 | |
2379 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3713 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
2380 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3714 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
2381 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3715 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
2382 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3716 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
2383 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3717 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
2384 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3718 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
2385 | |
|
|
2386 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
2387 | coro_ready[i] = newAV (); |
|
|
2388 | |
3719 | |
2389 | { |
3720 | { |
2390 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
3721 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2391 | |
3722 | |
2392 | coroapi.schedule = api_schedule; |
3723 | coroapi.schedule = api_schedule; |
|
|
3724 | coroapi.schedule_to = api_schedule_to; |
2393 | coroapi.cede = api_cede; |
3725 | coroapi.cede = api_cede; |
2394 | coroapi.cede_notself = api_cede_notself; |
3726 | coroapi.cede_notself = api_cede_notself; |
2395 | coroapi.ready = api_ready; |
3727 | coroapi.ready = api_ready; |
2396 | coroapi.is_ready = api_is_ready; |
3728 | coroapi.is_ready = api_is_ready; |
2397 | coroapi.nready = coro_nready; |
3729 | coroapi.nready = coro_nready; |
2398 | coroapi.current = coro_current; |
3730 | coroapi.current = coro_current; |
2399 | |
3731 | |
2400 | GCoroAPI = &coroapi; |
3732 | /*GCoroAPI = &coroapi;*/ |
2401 | sv_setiv (sv, (IV)&coroapi); |
3733 | sv_setiv (sv, (IV)&coroapi); |
2402 | SvREADONLY_on (sv); |
3734 | SvREADONLY_on (sv); |
2403 | } |
3735 | } |
2404 | } |
3736 | } |
2405 | |
3737 | |
|
|
3738 | SV * |
|
|
3739 | async (...) |
|
|
3740 | PROTOTYPE: &@ |
|
|
3741 | CODE: |
|
|
3742 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
3743 | api_ready (aTHX_ RETVAL); |
|
|
3744 | OUTPUT: |
|
|
3745 | RETVAL |
|
|
3746 | |
|
|
3747 | void |
|
|
3748 | _destroy (Coro::State coro) |
|
|
3749 | CODE: |
|
|
3750 | /* used by the manager thread */ |
|
|
3751 | coro_state_destroy (aTHX_ coro); |
|
|
3752 | |
|
|
3753 | void |
|
|
3754 | on_destroy (Coro::State coro, SV *cb) |
|
|
3755 | CODE: |
|
|
3756 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
3757 | |
|
|
3758 | void |
|
|
3759 | join (...) |
|
|
3760 | CODE: |
|
|
3761 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
3762 | |
|
|
3763 | void |
|
|
3764 | terminate (...) |
|
|
3765 | CODE: |
|
|
3766 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3767 | |
|
|
3768 | void |
|
|
3769 | cancel (...) |
|
|
3770 | CODE: |
|
|
3771 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
3772 | |
|
|
3773 | int |
|
|
3774 | safe_cancel (Coro::State self, ...) |
|
|
3775 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
|
|
3776 | |
2406 | void |
3777 | void |
2407 | schedule (...) |
3778 | schedule (...) |
2408 | CODE: |
3779 | CODE: |
2409 | api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), 0); |
3780 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3781 | |
|
|
3782 | void |
|
|
3783 | schedule_to (...) |
|
|
3784 | CODE: |
|
|
3785 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3786 | |
|
|
3787 | void |
|
|
3788 | cede_to (...) |
|
|
3789 | CODE: |
|
|
3790 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
2410 | |
3791 | |
2411 | void |
3792 | void |
2412 | cede (...) |
3793 | cede (...) |
2413 | CODE: |
3794 | CODE: |
2414 | api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), 0); |
3795 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
2415 | |
3796 | |
2416 | void |
3797 | void |
2417 | cede_notself (...) |
3798 | cede_notself (...) |
2418 | CODE: |
3799 | CODE: |
2419 | api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), 0); |
3800 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2420 | |
3801 | |
2421 | void |
3802 | void |
2422 | _set_current (SV *current) |
3803 | _set_current (SV *current) |
2423 | PROTOTYPE: $ |
3804 | PROTOTYPE: $ |
2424 | CODE: |
3805 | CODE: |
… | |
… | |
2427 | |
3808 | |
2428 | void |
3809 | void |
2429 | _set_readyhook (SV *hook) |
3810 | _set_readyhook (SV *hook) |
2430 | PROTOTYPE: $ |
3811 | PROTOTYPE: $ |
2431 | CODE: |
3812 | CODE: |
2432 | LOCK; |
|
|
2433 | SvREFCNT_dec (coro_readyhook); |
3813 | SvREFCNT_dec (coro_readyhook); |
|
|
3814 | SvGETMAGIC (hook); |
|
|
3815 | if (SvOK (hook)) |
|
|
3816 | { |
2434 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3817 | coro_readyhook = newSVsv (hook); |
2435 | UNLOCK; |
3818 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
3819 | } |
|
|
3820 | else |
|
|
3821 | { |
|
|
3822 | coro_readyhook = 0; |
|
|
3823 | CORO_READYHOOK = 0; |
|
|
3824 | } |
2436 | |
3825 | |
2437 | int |
3826 | int |
2438 | prio (Coro::State coro, int newprio = 0) |
3827 | prio (Coro::State coro, int newprio = 0) |
2439 | PROTOTYPE: $;$ |
3828 | PROTOTYPE: $;$ |
2440 | ALIAS: |
3829 | ALIAS: |
… | |
… | |
2446 | if (items > 1) |
3835 | if (items > 1) |
2447 | { |
3836 | { |
2448 | if (ix) |
3837 | if (ix) |
2449 | newprio = coro->prio - newprio; |
3838 | newprio = coro->prio - newprio; |
2450 | |
3839 | |
2451 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3840 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
2452 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3841 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
2453 | |
3842 | |
2454 | coro->prio = newprio; |
3843 | coro->prio = newprio; |
2455 | } |
3844 | } |
2456 | } |
3845 | } |
2457 | OUTPUT: |
3846 | OUTPUT: |
… | |
… | |
2471 | CODE: |
3860 | CODE: |
2472 | RETVAL = coro_nready; |
3861 | RETVAL = coro_nready; |
2473 | OUTPUT: |
3862 | OUTPUT: |
2474 | RETVAL |
3863 | RETVAL |
2475 | |
3864 | |
2476 | # for async_pool speedup |
|
|
2477 | void |
3865 | void |
2478 | _pool_1 (SV *cb) |
3866 | suspend (Coro::State self) |
|
|
3867 | PROTOTYPE: $ |
2479 | CODE: |
3868 | CODE: |
2480 | { |
3869 | self->flags |= CF_SUSPENDED; |
2481 | struct coro *coro = SvSTATE (coro_current); |
|
|
2482 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2483 | AV *defav = GvAV (PL_defgv); |
|
|
2484 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2485 | AV *invoke_av; |
|
|
2486 | int i, len; |
|
|
2487 | |
3870 | |
2488 | if (!invoke) |
3871 | void |
|
|
3872 | resume (Coro::State self) |
|
|
3873 | PROTOTYPE: $ |
|
|
3874 | CODE: |
|
|
3875 | self->flags &= ~CF_SUSPENDED; |
|
|
3876 | |
|
|
3877 | void |
|
|
3878 | _pool_handler (...) |
|
|
3879 | CODE: |
|
|
3880 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
3881 | |
|
|
3882 | void |
|
|
3883 | async_pool (SV *cv, ...) |
|
|
3884 | PROTOTYPE: &@ |
|
|
3885 | PPCODE: |
|
|
3886 | { |
|
|
3887 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3888 | AV *av = newAV (); |
|
|
3889 | SV *cb = ST (0); |
|
|
3890 | int i; |
|
|
3891 | |
|
|
3892 | av_extend (av, items - 2); |
|
|
3893 | for (i = 1; i < items; ++i) |
|
|
3894 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3895 | |
|
|
3896 | if ((SV *)hv == &PL_sv_undef) |
2489 | { |
3897 | { |
2490 | SV *old = PL_diehook; |
3898 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
2491 | PL_diehook = 0; |
3899 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
2492 | SvREFCNT_dec (old); |
3900 | SvREFCNT_dec (sv); |
2493 | croak ("\3async_pool terminate\2\n"); |
|
|
2494 | } |
3901 | } |
2495 | |
3902 | |
2496 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2497 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2498 | |
|
|
2499 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2500 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2501 | |
|
|
2502 | invoke_av = (AV *)SvRV (invoke); |
|
|
2503 | len = av_len (invoke_av); |
|
|
2504 | |
|
|
2505 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2506 | |
|
|
2507 | if (len > 0) |
|
|
2508 | { |
3903 | { |
2509 | av_fill (defav, len - 1); |
3904 | struct coro *coro = SvSTATE_hv (hv); |
2510 | for (i = 0; i < len; ++i) |
3905 | |
2511 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
3906 | assert (!coro->invoke_cb); |
|
|
3907 | assert (!coro->invoke_av); |
|
|
3908 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3909 | coro->invoke_av = av; |
2512 | } |
3910 | } |
|
|
3911 | |
|
|
3912 | api_ready (aTHX_ (SV *)hv); |
|
|
3913 | |
|
|
3914 | if (GIMME_V != G_VOID) |
|
|
3915 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3916 | else |
|
|
3917 | SvREFCNT_dec (hv); |
2513 | } |
3918 | } |
|
|
3919 | |
|
|
3920 | SV * |
|
|
3921 | rouse_cb () |
|
|
3922 | PROTOTYPE: |
|
|
3923 | CODE: |
|
|
3924 | RETVAL = coro_new_rouse_cb (aTHX); |
|
|
3925 | OUTPUT: |
|
|
3926 | RETVAL |
2514 | |
3927 | |
2515 | void |
3928 | void |
2516 | _pool_2 (SV *cb) |
3929 | rouse_wait (...) |
|
|
3930 | PROTOTYPE: ;$ |
|
|
3931 | PPCODE: |
|
|
3932 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
3933 | |
|
|
3934 | void |
|
|
3935 | on_enter (SV *block) |
|
|
3936 | ALIAS: |
|
|
3937 | on_leave = 1 |
|
|
3938 | PROTOTYPE: & |
2517 | CODE: |
3939 | CODE: |
2518 | { |
3940 | { |
2519 | struct coro *coro = SvSTATE (coro_current); |
3941 | struct coro *coro = SvSTATE_current; |
|
|
3942 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
2520 | |
3943 | |
2521 | sv_setsv (cb, &PL_sv_undef); |
3944 | block = s_get_cv_croak (block); |
2522 | |
3945 | |
2523 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
3946 | if (!*avp) |
2524 | coro->saved_deffh = 0; |
|
|
2525 | |
|
|
2526 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2527 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2528 | { |
|
|
2529 | SV *old = PL_diehook; |
|
|
2530 | PL_diehook = 0; |
|
|
2531 | SvREFCNT_dec (old); |
|
|
2532 | croak ("\3async_pool terminate\2\n"); |
|
|
2533 | } |
|
|
2534 | |
|
|
2535 | av_clear (GvAV (PL_defgv)); |
|
|
2536 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2537 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2538 | |
|
|
2539 | coro->prio = 0; |
|
|
2540 | |
|
|
2541 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2542 | api_trace (aTHX_ coro_current, 0); |
|
|
2543 | |
|
|
2544 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2545 | } |
|
|
2546 | |
|
|
2547 | |
|
|
2548 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2549 | |
|
|
2550 | void |
|
|
2551 | _get_state (SV *self) |
|
|
2552 | PROTOTYPE: $ |
|
|
2553 | PPCODE: |
|
|
2554 | { |
|
|
2555 | AV *defav = GvAV (PL_defgv); |
|
|
2556 | AV *av = newAV (); |
3947 | *avp = newAV (); |
2557 | int i; |
|
|
2558 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2559 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2560 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2561 | SvPOK_only (data_sv); |
|
|
2562 | |
3948 | |
2563 | data->errorno = errno; |
3949 | av_push (*avp, SvREFCNT_inc (block)); |
2564 | data->laststype = PL_laststype; |
|
|
2565 | data->laststatval = PL_laststatval; |
|
|
2566 | data->statcache = PL_statcache; |
|
|
2567 | |
3950 | |
2568 | av_extend (av, AvFILLp (defav) + 1 + 1); |
3951 | if (!ix) |
|
|
3952 | on_enterleave_call (aTHX_ block); |
2569 | |
3953 | |
2570 | for (i = 0; i <= AvFILLp (defav); ++i) |
3954 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
2571 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
3955 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
2572 | |
3956 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
2573 | av_push (av, data_sv); |
|
|
2574 | |
|
|
2575 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2576 | |
|
|
2577 | api_ready (aTHX_ self); |
|
|
2578 | } |
|
|
2579 | |
|
|
2580 | void |
|
|
2581 | _set_state (SV *state) |
|
|
2582 | PROTOTYPE: $ |
|
|
2583 | PPCODE: |
|
|
2584 | { |
|
|
2585 | AV *av = (AV *)SvRV (state); |
|
|
2586 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2587 | int i; |
|
|
2588 | |
|
|
2589 | errno = data->errorno; |
|
|
2590 | PL_laststype = data->laststype; |
|
|
2591 | PL_laststatval = data->laststatval; |
|
|
2592 | PL_statcache = data->statcache; |
|
|
2593 | |
|
|
2594 | EXTEND (SP, AvFILLp (av)); |
|
|
2595 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2596 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2597 | } |
|
|
2598 | |
|
|
2599 | |
|
|
2600 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2601 | |
|
|
2602 | BOOT: |
|
|
2603 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2604 | |
|
|
2605 | void |
|
|
2606 | _schedule (...) |
|
|
2607 | CODE: |
|
|
2608 | { |
|
|
2609 | static int incede; |
|
|
2610 | |
|
|
2611 | api_cede_notself (aTHX); |
|
|
2612 | |
|
|
2613 | ++incede; |
|
|
2614 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2615 | ; |
|
|
2616 | |
|
|
2617 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2618 | if (coro_nready >= incede) |
|
|
2619 | { |
|
|
2620 | PUSHMARK (SP); |
|
|
2621 | PUTBACK; |
|
|
2622 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2623 | SPAGAIN; |
|
|
2624 | } |
|
|
2625 | |
|
|
2626 | --incede; |
|
|
2627 | } |
3957 | } |
2628 | |
3958 | |
2629 | |
3959 | |
2630 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3960 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2631 | |
3961 | |
2632 | BOOT: |
3962 | BOOT: |
2633 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3963 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2634 | |
3964 | |
|
|
3965 | |
2635 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
3966 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2636 | |
3967 | |
2637 | SV * |
3968 | SV * |
2638 | new (SV *klass, SV *count_ = 0) |
3969 | new (SV *klass, SV *count = 0) |
2639 | CODE: |
3970 | CODE: |
2640 | { |
3971 | { |
2641 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
3972 | int semcnt = 1; |
2642 | AV *av = newAV (); |
3973 | |
2643 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
3974 | if (count) |
2644 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
3975 | { |
|
|
3976 | SvGETMAGIC (count); |
|
|
3977 | |
|
|
3978 | if (SvOK (count)) |
|
|
3979 | semcnt = SvIV (count); |
|
|
3980 | } |
|
|
3981 | |
|
|
3982 | RETVAL = sv_bless ( |
|
|
3983 | coro_waitarray_new (aTHX_ semcnt), |
|
|
3984 | GvSTASH (CvGV (cv)) |
|
|
3985 | ); |
2645 | } |
3986 | } |
|
|
3987 | OUTPUT: |
|
|
3988 | RETVAL |
|
|
3989 | |
|
|
3990 | # helper for Coro::Channel and others |
|
|
3991 | SV * |
|
|
3992 | _alloc (int count) |
|
|
3993 | CODE: |
|
|
3994 | RETVAL = coro_waitarray_new (aTHX_ count); |
2646 | OUTPUT: |
3995 | OUTPUT: |
2647 | RETVAL |
3996 | RETVAL |
2648 | |
3997 | |
2649 | SV * |
3998 | SV * |
2650 | count (SV *self) |
3999 | count (SV *self) |
… | |
… | |
2656 | void |
4005 | void |
2657 | up (SV *self, int adjust = 1) |
4006 | up (SV *self, int adjust = 1) |
2658 | ALIAS: |
4007 | ALIAS: |
2659 | adjust = 1 |
4008 | adjust = 1 |
2660 | CODE: |
4009 | CODE: |
2661 | { |
4010 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2662 | AV *av = (AV *)SvRV (self); |
|
|
2663 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2664 | IV count = SvIVX (count_sv); |
|
|
2665 | |
|
|
2666 | count += ix ? adjust : 1; |
|
|
2667 | SvIVX (count_sv) = count; |
|
|
2668 | |
|
|
2669 | /* now wake up as many waiters as possible */ |
|
|
2670 | while (count > 0 && AvFILLp (av) >= count) |
|
|
2671 | { |
|
|
2672 | SV *cb; |
|
|
2673 | |
|
|
2674 | /* swap first two elements so we can shift a waiter */ |
|
|
2675 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2676 | AvARRAY (av)[1] = count_sv; |
|
|
2677 | cb = av_shift (av); |
|
|
2678 | |
|
|
2679 | if (SvOBJECT (cb)) |
|
|
2680 | api_ready (aTHX_ cb); |
|
|
2681 | else |
|
|
2682 | croak ("callbacks not yet supported"); |
|
|
2683 | |
|
|
2684 | SvREFCNT_dec (cb); |
|
|
2685 | } |
|
|
2686 | } |
|
|
2687 | |
4011 | |
2688 | void |
4012 | void |
2689 | down (SV *self) |
4013 | down (...) |
2690 | CODE: |
4014 | CODE: |
2691 | api_execute_slf (aTHX_ cv, slf_init_semaphore_down, &ST (0), 1); |
4015 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4016 | |
|
|
4017 | void |
|
|
4018 | wait (...) |
|
|
4019 | CODE: |
|
|
4020 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
2692 | |
4021 | |
2693 | void |
4022 | void |
2694 | try (SV *self) |
4023 | try (SV *self) |
2695 | PPCODE: |
4024 | PPCODE: |
2696 | { |
4025 | { |
… | |
… | |
2708 | XSRETURN_NO; |
4037 | XSRETURN_NO; |
2709 | } |
4038 | } |
2710 | |
4039 | |
2711 | void |
4040 | void |
2712 | waiters (SV *self) |
4041 | waiters (SV *self) |
2713 | CODE: |
4042 | PPCODE: |
2714 | { |
4043 | { |
2715 | AV *av = (AV *)SvRV (self); |
4044 | AV *av = (AV *)SvRV (self); |
|
|
4045 | int wcount = AvFILLp (av) + 1 - 1; |
2716 | |
4046 | |
2717 | if (GIMME_V == G_SCALAR) |
4047 | if (GIMME_V == G_SCALAR) |
2718 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
4048 | XPUSHs (sv_2mortal (newSViv (wcount))); |
2719 | else |
4049 | else |
2720 | { |
4050 | { |
2721 | int i; |
4051 | int i; |
2722 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
4052 | EXTEND (SP, wcount); |
2723 | for (i = 1; i <= AvFILLp (av); ++i) |
4053 | for (i = 1; i <= wcount; ++i) |
2724 | PUSHs (newSVsv (AvARRAY (av)[i])); |
4054 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
2725 | } |
4055 | } |
2726 | } |
4056 | } |
2727 | |
4057 | |
|
|
4058 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4059 | |
|
|
4060 | void |
|
|
4061 | _may_delete (SV *sem, int count, int extra_refs) |
|
|
4062 | PPCODE: |
|
|
4063 | { |
|
|
4064 | AV *av = (AV *)SvRV (sem); |
|
|
4065 | |
|
|
4066 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
4067 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
4068 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
4069 | XSRETURN_YES; |
|
|
4070 | |
|
|
4071 | XSRETURN_NO; |
|
|
4072 | } |
|
|
4073 | |
|
|
4074 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4075 | |
|
|
4076 | SV * |
|
|
4077 | new (SV *klass) |
|
|
4078 | CODE: |
|
|
4079 | RETVAL = sv_bless ( |
|
|
4080 | coro_waitarray_new (aTHX_ 0), |
|
|
4081 | GvSTASH (CvGV (cv)) |
|
|
4082 | ); |
|
|
4083 | OUTPUT: |
|
|
4084 | RETVAL |
|
|
4085 | |
|
|
4086 | void |
|
|
4087 | wait (...) |
|
|
4088 | CODE: |
|
|
4089 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4090 | |
|
|
4091 | void |
|
|
4092 | broadcast (SV *self) |
|
|
4093 | CODE: |
|
|
4094 | { |
|
|
4095 | AV *av = (AV *)SvRV (self); |
|
|
4096 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4097 | } |
|
|
4098 | |
|
|
4099 | void |
|
|
4100 | send (SV *self) |
|
|
4101 | CODE: |
|
|
4102 | { |
|
|
4103 | AV *av = (AV *)SvRV (self); |
|
|
4104 | |
|
|
4105 | if (AvFILLp (av)) |
|
|
4106 | coro_signal_wake (aTHX_ av, 1); |
|
|
4107 | else |
|
|
4108 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
4109 | } |
|
|
4110 | |
|
|
4111 | IV |
|
|
4112 | awaited (SV *self) |
|
|
4113 | CODE: |
|
|
4114 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4115 | OUTPUT: |
|
|
4116 | RETVAL |
|
|
4117 | |
|
|
4118 | |
|
|
4119 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
4120 | |
|
|
4121 | BOOT: |
|
|
4122 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
4123 | |
|
|
4124 | void |
|
|
4125 | _schedule (...) |
|
|
4126 | CODE: |
|
|
4127 | { |
|
|
4128 | static int incede; |
|
|
4129 | |
|
|
4130 | api_cede_notself (aTHX); |
|
|
4131 | |
|
|
4132 | ++incede; |
|
|
4133 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
4134 | ; |
|
|
4135 | |
|
|
4136 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
4137 | if (coro_nready >= incede) |
|
|
4138 | { |
|
|
4139 | PUSHMARK (SP); |
|
|
4140 | PUTBACK; |
|
|
4141 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
4142 | } |
|
|
4143 | |
|
|
4144 | --incede; |
|
|
4145 | } |
|
|
4146 | |
|
|
4147 | |
|
|
4148 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
4149 | |
|
|
4150 | void |
|
|
4151 | _register (char *target, char *proto, SV *req) |
|
|
4152 | CODE: |
|
|
4153 | { |
|
|
4154 | SV *req_cv = s_get_cv_croak (req); |
|
|
4155 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4156 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4157 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4158 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4159 | } |
|
|
4160 | |
|
|
4161 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4162 | |
|
|
4163 | void |
|
|
4164 | patch_pp_sselect () |
|
|
4165 | CODE: |
|
|
4166 | if (!coro_old_pp_sselect) |
|
|
4167 | { |
|
|
4168 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4169 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4170 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4171 | } |
|
|
4172 | |
|
|
4173 | void |
|
|
4174 | unpatch_pp_sselect () |
|
|
4175 | CODE: |
|
|
4176 | if (coro_old_pp_sselect) |
|
|
4177 | { |
|
|
4178 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4179 | coro_old_pp_sselect = 0; |
|
|
4180 | } |
|
|
4181 | |