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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 |
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9 | #define PERL_EXT |
4 | |
10 | |
5 | #include "EXTERN.h" |
11 | #include "EXTERN.h" |
6 | #include "perl.h" |
12 | #include "perl.h" |
7 | #include "XSUB.h" |
13 | #include "XSUB.h" |
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14 | #include "perliol.h" |
8 | |
15 | |
9 | #include "patchlevel.h" |
16 | #include "schmorp.h" |
10 | |
17 | |
11 | #include <stdio.h> |
18 | #include <stdio.h> |
12 | #include <errno.h> |
19 | #include <errno.h> |
13 | #include <assert.h> |
20 | #include <assert.h> |
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21 | |
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22 | #ifndef SVs_PADSTALE |
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23 | # define SVs_PADSTALE 0 |
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24 | #endif |
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25 | |
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26 | #ifdef WIN32 |
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27 | # undef HAS_GETTIMEOFDAY |
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28 | # undef setjmp |
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29 | # undef longjmp |
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30 | # undef _exit |
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31 | # define setjmp _setjmp /* deep magic */ |
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32 | #else |
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33 | # include <inttypes.h> /* most portable stdint.h */ |
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34 | #endif |
14 | |
35 | |
15 | #ifdef HAVE_MMAP |
36 | #ifdef HAVE_MMAP |
16 | # include <unistd.h> |
37 | # include <unistd.h> |
17 | # include <sys/mman.h> |
38 | # include <sys/mman.h> |
18 | # ifndef MAP_ANONYMOUS |
39 | # ifndef MAP_ANONYMOUS |
… | |
… | |
35 | # define BOOT_PAGESIZE (void)0 |
56 | # define BOOT_PAGESIZE (void)0 |
36 | #endif |
57 | #endif |
37 | |
58 | |
38 | #if CORO_USE_VALGRIND |
59 | #if CORO_USE_VALGRIND |
39 | # include <valgrind/valgrind.h> |
60 | # include <valgrind/valgrind.h> |
40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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41 | #else |
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42 | # define REGISTER_STACK(cctx,start,end) |
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43 | #endif |
61 | #endif |
44 | |
62 | |
45 | /* the maximum number of idle cctx that will be pooled */ |
63 | /* the maximum number of idle cctx that will be pooled */ |
46 | #define MAX_IDLE_CCTX 8 |
64 | static int cctx_max_idle = 4; |
47 | |
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48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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49 | (PERL_REVISION > (a) \ |
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50 | || (PERL_REVISION == (a) \ |
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51 | && (PERL_VERSION > (b) \ |
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52 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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53 | |
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54 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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55 | # ifndef PL_ppaddr |
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56 | # define PL_ppaddr ppaddr |
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57 | # endif |
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58 | # ifndef call_sv |
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59 | # define call_sv perl_call_sv |
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60 | # endif |
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61 | # ifndef get_sv |
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62 | # define get_sv perl_get_sv |
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63 | # endif |
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64 | # ifndef get_cv |
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65 | # define get_cv perl_get_cv |
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66 | # endif |
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67 | # ifndef IS_PADGV |
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68 | # define IS_PADGV(v) 0 |
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69 | # endif |
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70 | # ifndef IS_PADCONST |
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71 | # define IS_PADCONST(v) 0 |
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72 | # endif |
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73 | #endif |
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74 | |
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75 | /* 5.8.7 */ |
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76 | #ifndef SvRV_set |
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77 | # define SvRV_set(s,v) SvRV(s) = (v) |
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78 | #endif |
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79 | |
65 | |
80 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
66 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
81 | # undef CORO_STACKGUARD |
67 | # undef CORO_STACKGUARD |
82 | #endif |
68 | #endif |
83 | |
69 | |
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90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
76 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
91 | #endif |
77 | #endif |
92 | |
78 | |
93 | /* The next macros try to return the current stack pointer, in an as |
79 | /* The next macros try to return the current stack pointer, in an as |
94 | * portable way as possible. */ |
80 | * portable way as possible. */ |
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81 | #if __GNUC__ >= 4 |
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82 | # define dSTACKLEVEL int stacklevel_dummy |
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83 | # define STACKLEVEL __builtin_frame_address (0) |
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84 | #else |
95 | #define dSTACKLEVEL volatile char stacklevel |
85 | # define dSTACKLEVEL volatile void *stacklevel |
96 | #define STACKLEVEL ((void *)&stacklevel) |
86 | # define STACKLEVEL ((void *)&stacklevel) |
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87 | #endif |
97 | |
88 | |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
89 | #define IN_DESTRUCT PL_dirty |
99 | |
90 | |
100 | #if __GNUC__ >= 3 |
91 | #if __GNUC__ >= 3 |
101 | # define attribute(x) __attribute__(x) |
92 | # define attribute(x) __attribute__(x) |
102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
93 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
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94 | # define INLINE static inline |
103 | #else |
95 | #else |
104 | # define attribute(x) |
96 | # define attribute(x) |
105 | # define BARRIER |
97 | # define expect(expr,value) (expr) |
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98 | # define INLINE static |
106 | #endif |
99 | #endif |
107 | |
100 | |
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101 | #define expect_false(expr) expect ((expr) != 0, 0) |
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102 | #define expect_true(expr) expect ((expr) != 0, 1) |
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103 | |
108 | #define NOINLINE attribute ((noinline)) |
104 | #define NOINLINE attribute ((noinline)) |
109 | |
105 | |
110 | #include "CoroAPI.h" |
106 | #include "CoroAPI.h" |
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107 | #define GCoroAPI (&coroapi) /* very sneaky */ |
111 | |
108 | |
112 | #ifdef USE_ITHREADS |
109 | #ifdef USE_ITHREADS |
113 | static perl_mutex coro_mutex; |
110 | # if CORO_PTHREAD |
114 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
111 | static void *coro_thx; |
115 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
112 | # endif |
116 | #else |
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117 | # define LOCK (void)0 |
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118 | # define UNLOCK (void)0 |
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119 | #endif |
113 | #endif |
120 | |
114 | |
121 | /* helper storage struct for Coro::AIO */ |
115 | #ifdef __linux |
122 | struct io_state |
116 | # include <time.h> /* for timespec */ |
123 | { |
117 | # include <syscall.h> /* for SYS_* */ |
124 | int errorno; |
118 | # ifdef SYS_clock_gettime |
125 | I32 laststype; |
119 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
126 | int laststatval; |
120 | # define CORO_CLOCK_MONOTONIC 1 |
127 | Stat_t statcache; |
121 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
128 | }; |
122 | # endif |
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123 | #endif |
129 | |
124 | |
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125 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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126 | static void (*u2time)(pTHX_ UV ret[2]); |
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127 | |
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128 | /* we hijack an hopefully unused CV flag for our purposes */ |
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129 | #define CVf_SLF 0x4000 |
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130 | static OP *pp_slf (pTHX); |
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131 | |
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132 | static U32 cctx_gen; |
130 | static size_t coro_stacksize = CORO_STACKSIZE; |
133 | static size_t cctx_stacksize = CORO_STACKSIZE; |
131 | static struct CoroAPI coroapi; |
134 | static struct CoroAPI coroapi; |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
135 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
133 | static JMPENV *main_top_env; |
136 | static JMPENV *main_top_env; |
134 | static HV *coro_state_stash, *coro_stash; |
137 | static HV *coro_state_stash, *coro_stash; |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
138 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
136 | |
139 | |
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140 | static AV *av_destroy; /* destruction queue */ |
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141 | static SV *sv_manager; /* the manager coro */ |
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142 | static SV *sv_idle; /* $Coro::idle */ |
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143 | |
137 | static GV *irsgv; /* $/ */ |
144 | static GV *irsgv; /* $/ */ |
138 | static GV *stdoutgv; /* STDOUT */ |
145 | static GV *stdoutgv; /* *STDOUT */ |
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146 | static SV *rv_diehook; |
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147 | static SV *rv_warnhook; |
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148 | static HV *hv_sig; /* %SIG */ |
139 | |
149 | |
140 | /* async_pool helper stuff */ |
150 | /* async_pool helper stuff */ |
141 | static SV *sv_pool_rss; |
151 | static SV *sv_pool_rss; |
142 | static SV *sv_pool_size; |
152 | static SV *sv_pool_size; |
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153 | static SV *sv_async_pool_idle; /* description string */ |
143 | static AV *av_async_pool; |
154 | static AV *av_async_pool; /* idle pool */ |
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155 | static SV *sv_Coro; /* class string */ |
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156 | static CV *cv_pool_handler; |
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157 | |
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158 | /* Coro::AnyEvent */ |
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159 | static SV *sv_activity; |
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160 | |
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161 | /* enable processtime/realtime profiling */ |
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162 | static char enable_times; |
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163 | typedef U32 coro_ts[2]; |
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164 | static coro_ts time_real, time_cpu; |
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165 | static char times_valid; |
144 | |
166 | |
145 | static struct coro_cctx *cctx_first; |
167 | static struct coro_cctx *cctx_first; |
146 | static int cctx_count, cctx_idle; |
168 | static int cctx_count, cctx_idle; |
147 | |
169 | |
148 | enum { |
170 | enum { |
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153 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
175 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
154 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
176 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
155 | }; |
177 | }; |
156 | |
178 | |
157 | /* this is a structure representing a c-level coroutine */ |
179 | /* this is a structure representing a c-level coroutine */ |
158 | typedef struct coro_cctx { |
180 | typedef struct coro_cctx |
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181 | { |
159 | struct coro_cctx *next; |
182 | struct coro_cctx *next; |
160 | |
183 | |
161 | /* the stack */ |
184 | /* the stack */ |
162 | void *sptr; |
185 | void *sptr; |
163 | size_t ssize; |
186 | size_t ssize; |
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166 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
189 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
167 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
190 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
168 | JMPENV *top_env; |
191 | JMPENV *top_env; |
169 | coro_context cctx; |
192 | coro_context cctx; |
170 | |
193 | |
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194 | U32 gen; |
171 | #if CORO_USE_VALGRIND |
195 | #if CORO_USE_VALGRIND |
172 | int valgrind_id; |
196 | int valgrind_id; |
173 | #endif |
197 | #endif |
174 | unsigned char flags; |
198 | unsigned char flags; |
175 | } coro_cctx; |
199 | } coro_cctx; |
176 | |
200 | |
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201 | coro_cctx *cctx_current; /* the currently running cctx */ |
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202 | |
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203 | /*****************************************************************************/ |
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204 | |
177 | enum { |
205 | enum { |
178 | CF_RUNNING = 0x0001, /* coroutine is running */ |
206 | CF_RUNNING = 0x0001, /* coroutine is running */ |
179 | CF_READY = 0x0002, /* coroutine is ready */ |
207 | CF_READY = 0x0002, /* coroutine is ready */ |
180 | CF_NEW = 0x0004, /* has never been switched to */ |
208 | CF_NEW = 0x0004, /* has never been switched to */ |
181 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
209 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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210 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
182 | }; |
211 | }; |
183 | |
212 | |
184 | /* this is a structure representing a perl-level coroutine */ |
213 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
185 | struct coro { |
214 | typedef struct |
186 | /* the c coroutine allocated to this perl coroutine, if any */ |
215 | { |
187 | coro_cctx *cctx; |
216 | SV *defsv; |
188 | |
217 | AV *defav; |
189 | /* data associated with this coroutine (initial args) */ |
218 | SV *errsv; |
190 | AV *args; |
219 | SV *irsgv; |
191 | int refcnt; |
220 | HV *hinthv; |
192 | int flags; /* CF_ flags */ |
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193 | |
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194 | /* optionally saved, might be zero */ |
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195 | AV *defav; /* @_ */ |
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196 | SV *defsv; /* $_ */ |
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197 | SV *errsv; /* $@ */ |
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198 | SV *deffh; /* default filehandle */ |
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199 | SV *irssv; /* $/ */ |
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200 | SV *irssv_sv; /* real $/ cache */ |
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201 | |
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202 | #define VAR(name,type) type name; |
221 | #define VAR(name,type) type name; |
203 | # include "state.h" |
222 | # include "state.h" |
204 | #undef VAR |
223 | #undef VAR |
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224 | } perl_slots; |
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225 | |
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226 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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227 | |
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228 | /* this is a structure representing a perl-level coroutine */ |
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229 | struct coro { |
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230 | /* the C coroutine allocated to this perl coroutine, if any */ |
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231 | coro_cctx *cctx; |
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232 | |
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233 | /* ready queue */ |
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234 | struct coro *next_ready; |
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235 | |
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236 | /* state data */ |
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237 | struct CoroSLF slf_frame; /* saved slf frame */ |
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238 | AV *mainstack; |
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239 | perl_slots *slot; /* basically the saved sp */ |
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240 | |
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241 | CV *startcv; /* the CV to execute */ |
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242 | AV *args; /* data associated with this coroutine (initial args) */ |
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243 | int refcnt; /* coroutines are refcounted, yes */ |
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244 | int flags; /* CF_ flags */ |
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245 | HV *hv; /* the perl hash associated with this coro, if any */ |
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246 | void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */ |
205 | |
247 | |
206 | /* statistics */ |
248 | /* statistics */ |
207 | int usecount; /* number of transfers to this coro */ |
249 | int usecount; /* number of transfers to this coro */ |
208 | |
250 | |
209 | /* coro process data */ |
251 | /* coro process data */ |
210 | int prio; |
252 | int prio; |
211 | //SV *throw; |
253 | SV *except; /* exception to be thrown */ |
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254 | SV *rouse_cb; |
212 | |
255 | |
213 | /* async_pool */ |
256 | /* async_pool */ |
214 | SV *saved_deffh; |
257 | SV *saved_deffh; |
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258 | SV *invoke_cb; |
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259 | AV *invoke_av; |
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260 | |
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261 | /* on_enter/on_leave */ |
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262 | AV *on_enter; |
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263 | AV *on_leave; |
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264 | |
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265 | /* swap_sv */ |
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266 | AV *swap_sv; |
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267 | |
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268 | /* times */ |
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269 | coro_ts t_cpu, t_real; |
215 | |
270 | |
216 | /* linked list */ |
271 | /* linked list */ |
217 | struct coro *next, *prev; |
272 | struct coro *next, *prev; |
218 | HV *hv; /* the perl hash associated with this coro, if any */ |
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219 | }; |
273 | }; |
220 | |
274 | |
221 | typedef struct coro *Coro__State; |
275 | typedef struct coro *Coro__State; |
222 | typedef struct coro *Coro__State_or_hashref; |
276 | typedef struct coro *Coro__State_or_hashref; |
223 | |
277 | |
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278 | /* the following variables are effectively part of the perl context */ |
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279 | /* and get copied between struct coro and these variables */ |
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280 | /* the mainr easonw e don't support windows process emulation */ |
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281 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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282 | |
224 | /** Coro ********************************************************************/ |
283 | /** Coro ********************************************************************/ |
225 | |
284 | |
226 | #define PRIO_MAX 3 |
285 | #define CORO_PRIO_MAX 3 |
227 | #define PRIO_HIGH 1 |
286 | #define CORO_PRIO_HIGH 1 |
228 | #define PRIO_NORMAL 0 |
287 | #define CORO_PRIO_NORMAL 0 |
229 | #define PRIO_LOW -1 |
288 | #define CORO_PRIO_LOW -1 |
230 | #define PRIO_IDLE -3 |
289 | #define CORO_PRIO_IDLE -3 |
231 | #define PRIO_MIN -4 |
290 | #define CORO_PRIO_MIN -4 |
232 | |
291 | |
233 | /* for Coro.pm */ |
292 | /* for Coro.pm */ |
234 | static SV *coro_current; |
293 | static SV *coro_current; |
235 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
294 | static SV *coro_readyhook; |
236 | static int coro_nready; |
295 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
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296 | static CV *cv_coro_run, *cv_coro_terminate; |
237 | static struct coro *coro_first; |
297 | static struct coro *coro_first; |
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298 | #define coro_nready coroapi.nready |
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299 | |
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300 | /** Coro::Select ************************************************************/ |
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301 | |
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302 | static OP *(*coro_old_pp_sselect) (pTHX); |
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303 | static SV *coro_select_select; |
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304 | |
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305 | /* horrible hack, but if it works... */ |
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306 | static OP * |
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307 | coro_pp_sselect (pTHX) |
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308 | { |
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309 | dSP; |
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310 | PUSHMARK (SP - 4); /* fake argument list */ |
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311 | XPUSHs (coro_select_select); |
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312 | PUTBACK; |
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313 | |
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314 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
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315 | PL_op->op_flags |= OPf_STACKED; |
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316 | PL_op->op_private = 0; |
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317 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
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318 | } |
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319 | |
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320 | /** time stuff **************************************************************/ |
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321 | |
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322 | #ifdef HAS_GETTIMEOFDAY |
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323 | |
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324 | static void |
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325 | coro_u2time (pTHX_ UV ret[2]) |
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326 | { |
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327 | struct timeval tv; |
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328 | gettimeofday (&tv, 0); |
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329 | |
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330 | ret [0] = tv.tv_sec; |
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331 | ret [1] = tv.tv_usec; |
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332 | } |
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333 | |
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334 | static double |
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335 | coro_nvtime () |
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336 | { |
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337 | struct timeval tv; |
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338 | gettimeofday (&tv, 0); |
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339 | |
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340 | return tv.tv_sec + tv.tv_usec * 1e-6; |
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341 | } |
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342 | |
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343 | static void |
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344 | time_init (pTHX) |
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345 | { |
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346 | nvtime = coro_nvtime; |
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347 | u2time = coro_u2time; |
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348 | } |
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349 | |
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350 | #else |
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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 | SV **svp; |
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356 | |
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357 | require_pv ("Time/HiRes.pm"); |
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358 | |
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359 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
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360 | |
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361 | if (!svp) croak ("Time::HiRes is required, but missing."); |
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362 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
363 | |
|
|
364 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
365 | |
|
|
366 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
367 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
368 | } |
|
|
369 | |
|
|
370 | #endif |
238 | |
371 | |
239 | /** lowlevel stuff **********************************************************/ |
372 | /** lowlevel stuff **********************************************************/ |
240 | |
373 | |
|
|
374 | static SV * |
|
|
375 | coro_get_sv (pTHX_ const char *name, int create) |
|
|
376 | { |
|
|
377 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
378 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
379 | get_sv (name, create); |
|
|
380 | #endif |
|
|
381 | return get_sv (name, create); |
|
|
382 | } |
|
|
383 | |
241 | static AV * |
384 | static AV * |
|
|
385 | coro_get_av (pTHX_ const char *name, int create) |
|
|
386 | { |
|
|
387 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
388 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
389 | get_av (name, create); |
|
|
390 | #endif |
|
|
391 | return get_av (name, create); |
|
|
392 | } |
|
|
393 | |
|
|
394 | static HV * |
|
|
395 | coro_get_hv (pTHX_ const char *name, int create) |
|
|
396 | { |
|
|
397 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
398 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
399 | get_hv (name, create); |
|
|
400 | #endif |
|
|
401 | return get_hv (name, create); |
|
|
402 | } |
|
|
403 | |
|
|
404 | INLINE void |
|
|
405 | coro_times_update () |
|
|
406 | { |
|
|
407 | #ifdef coro_clock_gettime |
|
|
408 | struct timespec ts; |
|
|
409 | |
|
|
410 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
411 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
412 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
413 | |
|
|
414 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
415 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
416 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
417 | #else |
|
|
418 | dTHX; |
|
|
419 | UV tv[2]; |
|
|
420 | |
|
|
421 | u2time (aTHX_ tv); |
|
|
422 | time_real [0] = tv [0]; |
|
|
423 | time_real [1] = tv [1] * 1000; |
|
|
424 | #endif |
|
|
425 | } |
|
|
426 | |
|
|
427 | INLINE void |
|
|
428 | coro_times_add (struct coro *c) |
|
|
429 | { |
|
|
430 | c->t_real [1] += time_real [1]; |
|
|
431 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
432 | c->t_real [0] += time_real [0]; |
|
|
433 | |
|
|
434 | c->t_cpu [1] += time_cpu [1]; |
|
|
435 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
436 | c->t_cpu [0] += time_cpu [0]; |
|
|
437 | } |
|
|
438 | |
|
|
439 | INLINE void |
|
|
440 | coro_times_sub (struct coro *c) |
|
|
441 | { |
|
|
442 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
443 | c->t_real [1] -= time_real [1]; |
|
|
444 | c->t_real [0] -= time_real [0]; |
|
|
445 | |
|
|
446 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
447 | c->t_cpu [1] -= time_cpu [1]; |
|
|
448 | c->t_cpu [0] -= time_cpu [0]; |
|
|
449 | } |
|
|
450 | |
|
|
451 | /*****************************************************************************/ |
|
|
452 | /* magic glue */ |
|
|
453 | |
|
|
454 | #define CORO_MAGIC_type_cv 26 |
|
|
455 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
456 | |
|
|
457 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
458 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
459 | ? SvMAGIC (sv) \ |
|
|
460 | : mg_find (sv, type)) |
|
|
461 | |
|
|
462 | #define CORO_MAGIC(sv, type) \ |
|
|
463 | (expect_true (SvMAGIC (sv)) \ |
|
|
464 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
465 | : 0) |
|
|
466 | |
|
|
467 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
468 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
469 | |
|
|
470 | INLINE struct coro * |
|
|
471 | SvSTATE_ (pTHX_ SV *coro) |
|
|
472 | { |
|
|
473 | HV *stash; |
|
|
474 | MAGIC *mg; |
|
|
475 | |
|
|
476 | if (SvROK (coro)) |
|
|
477 | coro = SvRV (coro); |
|
|
478 | |
|
|
479 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
480 | croak ("Coro::State object required"); |
|
|
481 | |
|
|
482 | stash = SvSTASH (coro); |
|
|
483 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
484 | { |
|
|
485 | /* very slow, but rare, check */ |
|
|
486 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
487 | croak ("Coro::State object required"); |
|
|
488 | } |
|
|
489 | |
|
|
490 | mg = CORO_MAGIC_state (coro); |
|
|
491 | return (struct coro *)mg->mg_ptr; |
|
|
492 | } |
|
|
493 | |
|
|
494 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
495 | |
|
|
496 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
497 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
498 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
499 | |
|
|
500 | /*****************************************************************************/ |
|
|
501 | /* padlist management and caching */ |
|
|
502 | |
|
|
503 | static AV * |
242 | coro_clone_padlist (pTHX_ CV *cv) |
504 | coro_derive_padlist (pTHX_ CV *cv) |
243 | { |
505 | { |
244 | AV *padlist = CvPADLIST (cv); |
506 | AV *padlist = CvPADLIST (cv); |
245 | AV *newpadlist, *newpad; |
507 | AV *newpadlist, *newpad; |
246 | |
508 | |
247 | newpadlist = newAV (); |
509 | newpadlist = newAV (); |
248 | AvREAL_off (newpadlist); |
510 | AvREAL_off (newpadlist); |
249 | #if PERL_VERSION_ATLEAST (5,9,0) |
511 | #if PERL_VERSION_ATLEAST (5,10,0) |
250 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
512 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
251 | #else |
513 | #else |
252 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
514 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
253 | #endif |
515 | #endif |
254 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
516 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
255 | --AvFILLp (padlist); |
517 | --AvFILLp (padlist); |
256 | |
518 | |
257 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
519 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
258 | av_store (newpadlist, 1, (SV *)newpad); |
520 | av_store (newpadlist, 1, (SV *)newpad); |
259 | |
521 | |
260 | return newpadlist; |
522 | return newpadlist; |
261 | } |
523 | } |
262 | |
524 | |
263 | static void |
525 | static void |
264 | free_padlist (pTHX_ AV *padlist) |
526 | free_padlist (pTHX_ AV *padlist) |
265 | { |
527 | { |
266 | /* may be during global destruction */ |
528 | /* may be during global destruction */ |
267 | if (SvREFCNT (padlist)) |
529 | if (!IN_DESTRUCT) |
268 | { |
530 | { |
269 | I32 i = AvFILLp (padlist); |
531 | I32 i = AvFILLp (padlist); |
270 | while (i >= 0) |
532 | |
|
|
533 | while (i > 0) /* special-case index 0 */ |
271 | { |
534 | { |
272 | SV **svp = av_fetch (padlist, i--, FALSE); |
535 | /* we try to be extra-careful here */ |
273 | if (svp) |
536 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
274 | { |
537 | I32 j = AvFILLp (av); |
275 | SV *sv; |
538 | |
276 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
539 | while (j >= 0) |
|
|
540 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
541 | |
|
|
542 | AvFILLp (av) = -1; |
277 | SvREFCNT_dec (sv); |
543 | SvREFCNT_dec (av); |
278 | |
|
|
279 | SvREFCNT_dec (*svp); |
|
|
280 | } |
|
|
281 | } |
544 | } |
282 | |
545 | |
|
|
546 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
547 | |
|
|
548 | AvFILLp (padlist) = -1; |
283 | SvREFCNT_dec ((SV*)padlist); |
549 | SvREFCNT_dec ((SV*)padlist); |
284 | } |
550 | } |
285 | } |
551 | } |
286 | |
552 | |
287 | static int |
553 | static int |
288 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
554 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
289 | { |
555 | { |
290 | AV *padlist; |
556 | AV *padlist; |
291 | AV *av = (AV *)mg->mg_obj; |
557 | AV *av = (AV *)mg->mg_obj; |
|
|
558 | |
|
|
559 | /* perl manages to free our internal AV and _then_ call us */ |
|
|
560 | if (IN_DESTRUCT) |
|
|
561 | return 0; |
292 | |
562 | |
293 | /* casting is fun. */ |
563 | /* casting is fun. */ |
294 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
564 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
295 | free_padlist (aTHX_ padlist); |
565 | free_padlist (aTHX_ padlist); |
296 | |
566 | |
297 | SvREFCNT_dec (av); |
567 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
298 | |
568 | |
299 | return 0; |
569 | return 0; |
300 | } |
570 | } |
301 | |
571 | |
302 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
572 | static MGVTBL coro_cv_vtbl = { |
303 | |
573 | 0, 0, 0, 0, |
304 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
574 | coro_cv_free |
305 | |
575 | }; |
306 | #define CORO_MAGIC(cv) \ |
|
|
307 | SvMAGIC (cv) \ |
|
|
308 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
|
|
309 | ? SvMAGIC (cv) \ |
|
|
310 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
|
|
311 | : 0 |
|
|
312 | |
|
|
313 | static struct coro * |
|
|
314 | SvSTATE_ (pTHX_ SV *coro) |
|
|
315 | { |
|
|
316 | HV *stash; |
|
|
317 | MAGIC *mg; |
|
|
318 | |
|
|
319 | if (SvROK (coro)) |
|
|
320 | coro = SvRV (coro); |
|
|
321 | |
|
|
322 | if (SvTYPE (coro) != SVt_PVHV) |
|
|
323 | croak ("Coro::State object required"); |
|
|
324 | |
|
|
325 | stash = SvSTASH (coro); |
|
|
326 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
327 | { |
|
|
328 | /* very slow, but rare, check */ |
|
|
329 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
330 | croak ("Coro::State object required"); |
|
|
331 | } |
|
|
332 | |
|
|
333 | mg = CORO_MAGIC (coro); |
|
|
334 | return (struct coro *)mg->mg_ptr; |
|
|
335 | } |
|
|
336 | |
|
|
337 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
338 | |
576 | |
339 | /* the next two functions merely cache the padlists */ |
577 | /* the next two functions merely cache the padlists */ |
340 | static void |
578 | static void |
341 | get_padlist (pTHX_ CV *cv) |
579 | get_padlist (pTHX_ CV *cv) |
342 | { |
580 | { |
343 | MAGIC *mg = CORO_MAGIC (cv); |
581 | MAGIC *mg = CORO_MAGIC_cv (cv); |
344 | AV *av; |
582 | AV *av; |
345 | |
583 | |
346 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
584 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
347 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
585 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
348 | else |
586 | else |
349 | { |
587 | { |
350 | #if CORO_PREFER_PERL_FUNCTIONS |
588 | #if CORO_PREFER_PERL_FUNCTIONS |
351 | /* this is probably cleaner, but also slower? */ |
589 | /* this is probably cleaner? but also slower! */ |
|
|
590 | /* in practise, it seems to be less stable */ |
352 | CV *cp = Perl_cv_clone (cv); |
591 | CV *cp = Perl_cv_clone (aTHX_ cv); |
353 | CvPADLIST (cv) = CvPADLIST (cp); |
592 | CvPADLIST (cv) = CvPADLIST (cp); |
354 | CvPADLIST (cp) = 0; |
593 | CvPADLIST (cp) = 0; |
355 | SvREFCNT_dec (cp); |
594 | SvREFCNT_dec (cp); |
356 | #else |
595 | #else |
357 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
596 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
358 | #endif |
597 | #endif |
359 | } |
598 | } |
360 | } |
599 | } |
361 | |
600 | |
362 | static void |
601 | static void |
363 | put_padlist (pTHX_ CV *cv) |
602 | put_padlist (pTHX_ CV *cv) |
364 | { |
603 | { |
365 | MAGIC *mg = CORO_MAGIC (cv); |
604 | MAGIC *mg = CORO_MAGIC_cv (cv); |
366 | AV *av; |
605 | AV *av; |
367 | |
606 | |
368 | if (!mg) |
607 | if (expect_false (!mg)) |
369 | { |
608 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
370 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
371 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
372 | mg->mg_virtual = &vtbl_coro; |
|
|
373 | mg->mg_obj = (SV *)newAV (); |
|
|
374 | } |
|
|
375 | |
609 | |
376 | av = (AV *)mg->mg_obj; |
610 | av = (AV *)mg->mg_obj; |
377 | |
611 | |
378 | if (AvFILLp (av) >= AvMAX (av)) |
612 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
379 | av_extend (av, AvMAX (av) + 1); |
613 | av_extend (av, AvFILLp (av) + 1); |
380 | |
614 | |
381 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
615 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
382 | } |
616 | } |
383 | |
617 | |
384 | /** load & save, init *******************************************************/ |
618 | /** load & save, init *******************************************************/ |
385 | |
619 | |
|
|
620 | /* swap sv heads, at least logically */ |
|
|
621 | static void |
|
|
622 | swap_svs (pTHX_ Coro__State c) |
|
|
623 | { |
|
|
624 | int i; |
|
|
625 | |
|
|
626 | for (i = 0; i <= AvFILLp (c->swap_sv); ) |
|
|
627 | { |
|
|
628 | SV *a = AvARRAY (c->swap_sv)[i++]; |
|
|
629 | SV *b = AvARRAY (c->swap_sv)[i++]; |
|
|
630 | |
|
|
631 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
632 | SV tmp; |
|
|
633 | |
|
|
634 | /* swap sv_any */ |
|
|
635 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
636 | |
|
|
637 | /* swap sv_flags */ |
|
|
638 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
639 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
640 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
641 | |
|
|
642 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
643 | /* perl 5.10 complicates this _quite_ a bit, but it also is |
|
|
644 | * much faster, so no quarrels here. alternatively, we could |
|
|
645 | * sv_upgrade to avoid this. |
|
|
646 | */ |
|
|
647 | { |
|
|
648 | /* swap sv_u */ |
|
|
649 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
650 | |
|
|
651 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
652 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
653 | */ |
|
|
654 | #define svany_in_head(type) \ |
|
|
655 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
656 | |
|
|
657 | if (svany_in_head (SvTYPE (a))) |
|
|
658 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
659 | |
|
|
660 | if (svany_in_head (SvTYPE (b))) |
|
|
661 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
662 | } |
|
|
663 | #endif |
|
|
664 | } |
|
|
665 | } |
|
|
666 | |
|
|
667 | #define SWAP_SVS(coro) \ |
|
|
668 | if (expect_false ((coro)->swap_sv)) \ |
|
|
669 | swap_svs (aTHX_ (coro)) |
|
|
670 | |
|
|
671 | static void |
|
|
672 | on_enterleave_call (pTHX_ SV *cb); |
|
|
673 | |
386 | static void |
674 | static void |
387 | load_perl (pTHX_ Coro__State c) |
675 | load_perl (pTHX_ Coro__State c) |
388 | { |
676 | { |
|
|
677 | perl_slots *slot = c->slot; |
|
|
678 | c->slot = 0; |
|
|
679 | |
|
|
680 | PL_mainstack = c->mainstack; |
|
|
681 | |
|
|
682 | GvSV (PL_defgv) = slot->defsv; |
|
|
683 | GvAV (PL_defgv) = slot->defav; |
|
|
684 | GvSV (PL_errgv) = slot->errsv; |
|
|
685 | GvSV (irsgv) = slot->irsgv; |
|
|
686 | GvHV (PL_hintgv) = slot->hinthv; |
|
|
687 | |
389 | #define VAR(name,type) PL_ ## name = c->name; |
688 | #define VAR(name,type) PL_ ## name = slot->name; |
390 | # include "state.h" |
689 | # include "state.h" |
391 | #undef VAR |
690 | #undef VAR |
392 | |
|
|
393 | GvSV (PL_defgv) = c->defsv; |
|
|
394 | GvAV (PL_defgv) = c->defav; |
|
|
395 | GvSV (PL_errgv) = c->errsv; |
|
|
396 | GvSV (irsgv) = c->irssv_sv; |
|
|
397 | |
691 | |
398 | { |
692 | { |
399 | dSP; |
693 | dSP; |
|
|
694 | |
400 | CV *cv; |
695 | CV *cv; |
401 | |
696 | |
402 | /* now do the ugly restore mess */ |
697 | /* now do the ugly restore mess */ |
403 | while ((cv = (CV *)POPs)) |
698 | while (expect_true (cv = (CV *)POPs)) |
404 | { |
699 | { |
405 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
700 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
406 | CvDEPTH (cv) = PTR2IV (POPs); |
701 | CvDEPTH (cv) = PTR2IV (POPs); |
407 | CvPADLIST (cv) = (AV *)POPs; |
702 | CvPADLIST (cv) = (AV *)POPs; |
408 | } |
703 | } |
409 | |
704 | |
410 | PUTBACK; |
705 | PUTBACK; |
411 | } |
706 | } |
|
|
707 | |
|
|
708 | slf_frame = c->slf_frame; |
|
|
709 | CORO_THROW = c->except; |
|
|
710 | |
|
|
711 | if (expect_false (enable_times)) |
|
|
712 | { |
|
|
713 | if (expect_false (!times_valid)) |
|
|
714 | coro_times_update (); |
|
|
715 | |
|
|
716 | coro_times_sub (c); |
|
|
717 | } |
|
|
718 | |
|
|
719 | if (expect_false (c->on_enter)) |
|
|
720 | { |
|
|
721 | int i; |
|
|
722 | |
|
|
723 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
724 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
725 | } |
|
|
726 | |
|
|
727 | SWAP_SVS (c); |
412 | } |
728 | } |
413 | |
729 | |
414 | static void |
730 | static void |
415 | save_perl (pTHX_ Coro__State c) |
731 | save_perl (pTHX_ Coro__State c) |
416 | { |
732 | { |
|
|
733 | SWAP_SVS (c); |
|
|
734 | |
|
|
735 | if (expect_false (c->on_leave)) |
|
|
736 | { |
|
|
737 | int i; |
|
|
738 | |
|
|
739 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
740 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
741 | } |
|
|
742 | |
|
|
743 | times_valid = 0; |
|
|
744 | |
|
|
745 | if (expect_false (enable_times)) |
|
|
746 | { |
|
|
747 | coro_times_update (); times_valid = 1; |
|
|
748 | coro_times_add (c); |
|
|
749 | } |
|
|
750 | |
|
|
751 | c->except = CORO_THROW; |
|
|
752 | c->slf_frame = slf_frame; |
|
|
753 | |
417 | { |
754 | { |
418 | dSP; |
755 | dSP; |
419 | I32 cxix = cxstack_ix; |
756 | I32 cxix = cxstack_ix; |
420 | PERL_CONTEXT *ccstk = cxstack; |
757 | PERL_CONTEXT *ccstk = cxstack; |
421 | PERL_SI *top_si = PL_curstackinfo; |
758 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
427 | |
764 | |
428 | XPUSHs (Nullsv); |
765 | XPUSHs (Nullsv); |
429 | /* this loop was inspired by pp_caller */ |
766 | /* this loop was inspired by pp_caller */ |
430 | for (;;) |
767 | for (;;) |
431 | { |
768 | { |
432 | while (cxix >= 0) |
769 | while (expect_true (cxix >= 0)) |
433 | { |
770 | { |
434 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
771 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
435 | |
772 | |
436 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
773 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
437 | { |
774 | { |
438 | CV *cv = cx->blk_sub.cv; |
775 | CV *cv = cx->blk_sub.cv; |
439 | |
776 | |
440 | if (CvDEPTH (cv)) |
777 | if (expect_true (CvDEPTH (cv))) |
441 | { |
778 | { |
442 | EXTEND (SP, 3); |
779 | EXTEND (SP, 3); |
443 | PUSHs ((SV *)CvPADLIST (cv)); |
780 | PUSHs ((SV *)CvPADLIST (cv)); |
444 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
781 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
445 | PUSHs ((SV *)cv); |
782 | PUSHs ((SV *)cv); |
446 | |
783 | |
447 | CvDEPTH (cv) = 0; |
784 | CvDEPTH (cv) = 0; |
448 | get_padlist (aTHX_ cv); |
785 | get_padlist (aTHX_ cv); |
449 | } |
786 | } |
450 | } |
787 | } |
451 | } |
788 | } |
452 | |
789 | |
453 | if (top_si->si_type == PERLSI_MAIN) |
790 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
454 | break; |
791 | break; |
455 | |
792 | |
456 | top_si = top_si->si_prev; |
793 | top_si = top_si->si_prev; |
457 | ccstk = top_si->si_cxstack; |
794 | ccstk = top_si->si_cxstack; |
458 | cxix = top_si->si_cxix; |
795 | cxix = top_si->si_cxix; |
459 | } |
796 | } |
460 | |
797 | |
461 | PUTBACK; |
798 | PUTBACK; |
462 | } |
799 | } |
463 | |
800 | |
|
|
801 | /* allocate some space on the context stack for our purposes */ |
|
|
802 | /* we manually unroll here, as usually 2 slots is enough */ |
|
|
803 | if (SLOT_COUNT >= 1) CXINC; |
|
|
804 | if (SLOT_COUNT >= 2) CXINC; |
|
|
805 | if (SLOT_COUNT >= 3) CXINC; |
|
|
806 | { |
|
|
807 | unsigned int i; |
|
|
808 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
809 | CXINC; |
|
|
810 | } |
|
|
811 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
812 | |
|
|
813 | c->mainstack = PL_mainstack; |
|
|
814 | |
|
|
815 | { |
|
|
816 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
817 | |
464 | c->defav = GvAV (PL_defgv); |
818 | slot->defav = GvAV (PL_defgv); |
465 | c->defsv = DEFSV; |
819 | slot->defsv = DEFSV; |
466 | c->errsv = ERRSV; |
820 | slot->errsv = ERRSV; |
467 | c->irssv_sv = GvSV (irsgv); |
821 | slot->irsgv = GvSV (irsgv); |
|
|
822 | slot->hinthv = GvHV (PL_hintgv); |
468 | |
823 | |
469 | #define VAR(name,type)c->name = PL_ ## name; |
824 | #define VAR(name,type) slot->name = PL_ ## name; |
470 | # include "state.h" |
825 | # include "state.h" |
471 | #undef VAR |
826 | #undef VAR |
|
|
827 | } |
472 | } |
828 | } |
473 | |
829 | |
474 | /* |
830 | /* |
475 | * allocate various perl stacks. This is an exact copy |
831 | * allocate various perl stacks. This is almost an exact copy |
476 | * of perl.c:init_stacks, except that it uses less memory |
832 | * of perl.c:init_stacks, except that it uses less memory |
477 | * on the (sometimes correct) assumption that coroutines do |
833 | * on the (sometimes correct) assumption that coroutines do |
478 | * not usually need a lot of stackspace. |
834 | * not usually need a lot of stackspace. |
479 | */ |
835 | */ |
480 | #if CORO_PREFER_PERL_FUNCTIONS |
836 | #if CORO_PREFER_PERL_FUNCTIONS |
481 | # define coro_init_stacks init_stacks |
837 | # define coro_init_stacks(thx) init_stacks () |
482 | #else |
838 | #else |
483 | static void |
839 | static void |
484 | coro_init_stacks (pTHX) |
840 | coro_init_stacks (pTHX) |
485 | { |
841 | { |
486 | PL_curstackinfo = new_stackinfo(64, 6); |
842 | PL_curstackinfo = new_stackinfo(32, 8); |
487 | PL_curstackinfo->si_type = PERLSI_MAIN; |
843 | PL_curstackinfo->si_type = PERLSI_MAIN; |
488 | PL_curstack = PL_curstackinfo->si_stack; |
844 | PL_curstack = PL_curstackinfo->si_stack; |
489 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
845 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
490 | |
846 | |
491 | PL_stack_base = AvARRAY(PL_curstack); |
847 | PL_stack_base = AvARRAY(PL_curstack); |
492 | PL_stack_sp = PL_stack_base; |
848 | PL_stack_sp = PL_stack_base; |
493 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
849 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
494 | |
850 | |
495 | New(50,PL_tmps_stack,64,SV*); |
851 | New(50,PL_tmps_stack,32,SV*); |
496 | PL_tmps_floor = -1; |
852 | PL_tmps_floor = -1; |
497 | PL_tmps_ix = -1; |
853 | PL_tmps_ix = -1; |
498 | PL_tmps_max = 64; |
854 | PL_tmps_max = 32; |
499 | |
855 | |
500 | New(54,PL_markstack,16,I32); |
856 | New(54,PL_markstack,16,I32); |
501 | PL_markstack_ptr = PL_markstack; |
857 | PL_markstack_ptr = PL_markstack; |
502 | PL_markstack_max = PL_markstack + 16; |
858 | PL_markstack_max = PL_markstack + 16; |
503 | |
859 | |
504 | #ifdef SET_MARK_OFFSET |
860 | #ifdef SET_MARK_OFFSET |
505 | SET_MARK_OFFSET; |
861 | SET_MARK_OFFSET; |
506 | #endif |
862 | #endif |
507 | |
863 | |
508 | New(54,PL_scopestack,16,I32); |
864 | New(54,PL_scopestack,8,I32); |
509 | PL_scopestack_ix = 0; |
865 | PL_scopestack_ix = 0; |
510 | PL_scopestack_max = 16; |
866 | PL_scopestack_max = 8; |
511 | |
867 | |
512 | New(54,PL_savestack,64,ANY); |
868 | New(54,PL_savestack,24,ANY); |
513 | PL_savestack_ix = 0; |
869 | PL_savestack_ix = 0; |
514 | PL_savestack_max = 64; |
870 | PL_savestack_max = 24; |
515 | |
871 | |
516 | #if !PERL_VERSION_ATLEAST (5,9,0) |
872 | #if !PERL_VERSION_ATLEAST (5,10,0) |
517 | New(54,PL_retstack,4,OP*); |
873 | New(54,PL_retstack,4,OP*); |
518 | PL_retstack_ix = 0; |
874 | PL_retstack_ix = 0; |
519 | PL_retstack_max = 4; |
875 | PL_retstack_max = 4; |
520 | #endif |
876 | #endif |
521 | } |
877 | } |
… | |
… | |
523 | |
879 | |
524 | /* |
880 | /* |
525 | * destroy the stacks, the callchain etc... |
881 | * destroy the stacks, the callchain etc... |
526 | */ |
882 | */ |
527 | static void |
883 | static void |
528 | coro_destroy_stacks (pTHX) |
884 | coro_destruct_stacks (pTHX) |
529 | { |
885 | { |
530 | while (PL_curstackinfo->si_next) |
886 | while (PL_curstackinfo->si_next) |
531 | PL_curstackinfo = PL_curstackinfo->si_next; |
887 | PL_curstackinfo = PL_curstackinfo->si_next; |
532 | |
888 | |
533 | while (PL_curstackinfo) |
889 | while (PL_curstackinfo) |
… | |
… | |
544 | |
900 | |
545 | Safefree (PL_tmps_stack); |
901 | Safefree (PL_tmps_stack); |
546 | Safefree (PL_markstack); |
902 | Safefree (PL_markstack); |
547 | Safefree (PL_scopestack); |
903 | Safefree (PL_scopestack); |
548 | Safefree (PL_savestack); |
904 | Safefree (PL_savestack); |
549 | #if !PERL_VERSION_ATLEAST (5,9,0) |
905 | #if !PERL_VERSION_ATLEAST (5,10,0) |
550 | Safefree (PL_retstack); |
906 | Safefree (PL_retstack); |
551 | #endif |
907 | #endif |
552 | } |
908 | } |
553 | |
909 | |
|
|
910 | #define CORO_RSS \ |
|
|
911 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
912 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
913 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
914 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
915 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
916 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
917 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
918 | |
554 | static size_t |
919 | static size_t |
555 | coro_rss (pTHX_ struct coro *coro) |
920 | coro_rss (pTHX_ struct coro *coro) |
556 | { |
921 | { |
557 | size_t rss = sizeof (*coro); |
922 | size_t rss = sizeof (*coro); |
558 | |
923 | |
559 | if (coro->mainstack) |
924 | if (coro->mainstack) |
560 | { |
925 | { |
561 | if (coro->flags & CF_RUNNING) |
926 | if (coro->flags & CF_RUNNING) |
562 | { |
927 | { |
563 | #define VAR(name,type)coro->name = PL_ ## name; |
928 | #define SYM(sym) PL_ ## sym |
564 | # include "state.h" |
929 | CORO_RSS; |
565 | #undef VAR |
930 | #undef SYM |
566 | } |
931 | } |
|
|
932 | else |
|
|
933 | { |
|
|
934 | #define SYM(sym) coro->slot->sym |
|
|
935 | CORO_RSS; |
|
|
936 | #undef SYM |
|
|
937 | } |
|
|
938 | } |
567 | |
939 | |
568 | rss += sizeof (coro->curstackinfo); |
940 | return rss; |
569 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
941 | } |
570 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
571 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
|
|
572 | rss += coro->tmps_max * sizeof (SV *); |
|
|
573 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
574 | rss += coro->scopestack_max * sizeof (I32); |
|
|
575 | rss += coro->savestack_max * sizeof (ANY); |
|
|
576 | |
942 | |
577 | #if !PERL_VERSION_ATLEAST (5,9,0) |
943 | /** coroutine stack handling ************************************************/ |
578 | rss += coro->retstack_max * sizeof (OP *); |
944 | |
|
|
945 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
946 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
947 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
948 | |
|
|
949 | /* apparently < 5.8.8 */ |
|
|
950 | #ifndef MgPV_nolen_const |
|
|
951 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
952 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
953 | (const char*)(mg)->mg_ptr) |
579 | #endif |
954 | #endif |
|
|
955 | |
|
|
956 | /* |
|
|
957 | * This overrides the default magic get method of %SIG elements. |
|
|
958 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
959 | * and instead of trying to save and restore the hash elements, we just provide |
|
|
960 | * readback here. |
|
|
961 | */ |
|
|
962 | static int |
|
|
963 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
964 | { |
|
|
965 | const char *s = MgPV_nolen_const (mg); |
|
|
966 | |
|
|
967 | if (*s == '_') |
580 | } |
968 | { |
|
|
969 | SV **svp = 0; |
581 | |
970 | |
|
|
971 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
972 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
973 | |
|
|
974 | if (svp) |
|
|
975 | { |
|
|
976 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
977 | return 0; |
|
|
978 | } |
|
|
979 | } |
|
|
980 | |
|
|
981 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
982 | } |
|
|
983 | |
|
|
984 | static int |
|
|
985 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
986 | { |
|
|
987 | const char *s = MgPV_nolen_const (mg); |
|
|
988 | |
|
|
989 | if (*s == '_') |
|
|
990 | { |
|
|
991 | SV **svp = 0; |
|
|
992 | |
|
|
993 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
994 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
995 | |
|
|
996 | if (svp) |
|
|
997 | { |
|
|
998 | SV *old = *svp; |
|
|
999 | *svp = 0; |
|
|
1000 | SvREFCNT_dec (old); |
|
|
1001 | return 0; |
|
|
1002 | } |
|
|
1003 | } |
|
|
1004 | |
|
|
1005 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
1006 | } |
|
|
1007 | |
|
|
1008 | static int |
|
|
1009 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
1010 | { |
|
|
1011 | const char *s = MgPV_nolen_const (mg); |
|
|
1012 | |
|
|
1013 | if (*s == '_') |
|
|
1014 | { |
|
|
1015 | SV **svp = 0; |
|
|
1016 | |
|
|
1017 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1018 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1019 | |
|
|
1020 | if (svp) |
|
|
1021 | { |
|
|
1022 | SV *old = *svp; |
|
|
1023 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
|
|
1024 | SvREFCNT_dec (old); |
|
|
1025 | return 0; |
|
|
1026 | } |
|
|
1027 | } |
|
|
1028 | |
|
|
1029 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
1030 | } |
|
|
1031 | |
|
|
1032 | static void |
|
|
1033 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
1034 | { |
|
|
1035 | /* kind of mega-hacky, but works */ |
|
|
1036 | ta->next = ta->prev = (struct coro *)ta; |
|
|
1037 | } |
|
|
1038 | |
|
|
1039 | static int |
|
|
1040 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
1041 | { |
582 | return rss; |
1042 | return 0; |
583 | } |
1043 | } |
584 | |
1044 | |
585 | /** coroutine stack handling ************************************************/ |
|
|
586 | |
|
|
587 | static void |
1045 | static int |
|
|
1046 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1047 | { |
|
|
1048 | return 1; |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | static UNOP init_perl_op; |
|
|
1052 | |
|
|
1053 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
588 | coro_setup (pTHX_ struct coro *coro) |
1054 | init_perl (pTHX_ struct coro *coro) |
589 | { |
1055 | { |
590 | /* |
1056 | /* |
591 | * emulate part of the perl startup here. |
1057 | * emulate part of the perl startup here. |
592 | */ |
1058 | */ |
593 | coro_init_stacks (aTHX); |
1059 | coro_init_stacks (aTHX); |
594 | |
1060 | |
595 | PL_runops = RUNOPS_DEFAULT; |
1061 | PL_runops = RUNOPS_DEFAULT; |
596 | PL_curcop = &PL_compiling; |
1062 | PL_curcop = &PL_compiling; |
597 | PL_in_eval = EVAL_NULL; |
1063 | PL_in_eval = EVAL_NULL; |
598 | PL_comppad = 0; |
1064 | PL_comppad = 0; |
|
|
1065 | PL_comppad_name = 0; |
|
|
1066 | PL_comppad_name_fill = 0; |
|
|
1067 | PL_comppad_name_floor = 0; |
599 | PL_curpm = 0; |
1068 | PL_curpm = 0; |
|
|
1069 | PL_curpad = 0; |
600 | PL_localizing = 0; |
1070 | PL_localizing = 0; |
601 | PL_dirty = 0; |
|
|
602 | PL_restartop = 0; |
1071 | PL_restartop = 0; |
|
|
1072 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1073 | PL_parser = 0; |
|
|
1074 | #endif |
|
|
1075 | PL_hints = 0; |
|
|
1076 | |
|
|
1077 | /* recreate the die/warn hooks */ |
|
|
1078 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
1079 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
603 | |
1080 | |
604 | GvSV (PL_defgv) = NEWSV (0, 0); |
1081 | GvSV (PL_defgv) = newSV (0); |
605 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1082 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
606 | GvSV (PL_errgv) = NEWSV (0, 0); |
1083 | GvSV (PL_errgv) = newSV (0); |
607 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1084 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1085 | GvHV (PL_hintgv) = 0; |
608 | PL_rs = newSVsv (GvSV (irsgv)); |
1086 | PL_rs = newSVsv (GvSV (irsgv)); |
609 | PL_defoutgv = SvREFCNT_inc (stdoutgv); |
1087 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
610 | |
1088 | |
611 | { |
1089 | { |
612 | dSP; |
1090 | dSP; |
613 | LOGOP myop; |
1091 | UNOP myop; |
614 | |
1092 | |
615 | Zero (&myop, 1, LOGOP); |
1093 | Zero (&myop, 1, UNOP); |
616 | myop.op_next = Nullop; |
1094 | myop.op_next = Nullop; |
|
|
1095 | myop.op_type = OP_ENTERSUB; |
617 | myop.op_flags = OPf_WANT_VOID; |
1096 | myop.op_flags = OPf_WANT_VOID; |
618 | |
1097 | |
619 | PUSHMARK (SP); |
1098 | PUSHMARK (SP); |
620 | XPUSHs (av_shift (GvAV (PL_defgv))); |
1099 | PUSHs ((SV *)coro->startcv); |
621 | PUTBACK; |
1100 | PUTBACK; |
622 | PL_op = (OP *)&myop; |
1101 | PL_op = (OP *)&myop; |
623 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1102 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
624 | SPAGAIN; |
|
|
625 | } |
1103 | } |
626 | |
1104 | |
627 | ENTER; /* necessary e.g. for dounwind */ |
1105 | /* this newly created coroutine might be run on an existing cctx which most |
628 | } |
1106 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
1107 | */ |
|
|
1108 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
1109 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
629 | |
1110 | |
|
|
1111 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1112 | init_perl_op.op_next = PL_op; |
|
|
1113 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1114 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1115 | /* no flags etc. required, as an init function won't be called */ |
|
|
1116 | |
|
|
1117 | PL_op = (OP *)&init_perl_op; |
|
|
1118 | |
|
|
1119 | /* copy throw, in case it was set before init_perl */ |
|
|
1120 | CORO_THROW = coro->except; |
|
|
1121 | |
|
|
1122 | SWAP_SVS (coro); |
|
|
1123 | |
|
|
1124 | if (expect_false (enable_times)) |
|
|
1125 | { |
|
|
1126 | coro_times_update (); |
|
|
1127 | coro_times_sub (coro); |
|
|
1128 | } |
|
|
1129 | } |
|
|
1130 | |
630 | static void |
1131 | static void |
631 | coro_destroy (pTHX_ struct coro *coro) |
1132 | coro_unwind_stacks (pTHX) |
632 | { |
1133 | { |
633 | if (!IN_DESTRUCT) |
1134 | if (!IN_DESTRUCT) |
634 | { |
1135 | { |
635 | /* restore all saved variables and stuff */ |
1136 | /* restore all saved variables and stuff */ |
636 | LEAVE_SCOPE (0); |
1137 | LEAVE_SCOPE (0); |
… | |
… | |
644 | POPSTACK_TO (PL_mainstack); |
1145 | POPSTACK_TO (PL_mainstack); |
645 | |
1146 | |
646 | /* unwind main stack */ |
1147 | /* unwind main stack */ |
647 | dounwind (-1); |
1148 | dounwind (-1); |
648 | } |
1149 | } |
|
|
1150 | } |
649 | |
1151 | |
650 | SvREFCNT_dec (GvSV (PL_defgv)); |
1152 | static void |
651 | SvREFCNT_dec (GvAV (PL_defgv)); |
1153 | destroy_perl (pTHX_ struct coro *coro) |
652 | SvREFCNT_dec (GvSV (PL_errgv)); |
1154 | { |
653 | SvREFCNT_dec (PL_defoutgv); |
1155 | SV *svf [9]; |
654 | SvREFCNT_dec (PL_rs); |
|
|
655 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
656 | |
1156 | |
|
|
1157 | { |
|
|
1158 | struct coro *current = SvSTATE_current; |
|
|
1159 | |
|
|
1160 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1161 | |
|
|
1162 | save_perl (aTHX_ current); |
|
|
1163 | load_perl (aTHX_ coro); |
|
|
1164 | |
|
|
1165 | coro_unwind_stacks (aTHX); |
|
|
1166 | coro_destruct_stacks (aTHX); |
|
|
1167 | |
|
|
1168 | /* restore swapped sv's */ |
|
|
1169 | SWAP_SVS (coro); |
|
|
1170 | |
|
|
1171 | // now save some sv's to be free'd later |
|
|
1172 | svf [0] = GvSV (PL_defgv); |
|
|
1173 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1174 | svf [2] = GvSV (PL_errgv); |
|
|
1175 | svf [3] = (SV *)PL_defoutgv; |
|
|
1176 | svf [4] = PL_rs; |
|
|
1177 | svf [5] = GvSV (irsgv); |
|
|
1178 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1179 | svf [7] = PL_diehook; |
|
|
1180 | svf [8] = PL_warnhook; |
|
|
1181 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1182 | |
|
|
1183 | load_perl (aTHX_ current); |
|
|
1184 | } |
|
|
1185 | |
|
|
1186 | { |
|
|
1187 | unsigned int i; |
|
|
1188 | |
|
|
1189 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1190 | SvREFCNT_dec (svf [i]); |
|
|
1191 | |
657 | SvREFCNT_dec (coro->saved_deffh); |
1192 | SvREFCNT_dec (coro->saved_deffh); |
658 | //SvREFCNT_dec (coro->throw); |
1193 | SvREFCNT_dec (coro->rouse_cb); |
659 | |
1194 | SvREFCNT_dec (coro->invoke_cb); |
660 | coro_destroy_stacks (aTHX); |
1195 | SvREFCNT_dec (coro->invoke_av); |
|
|
1196 | } |
661 | } |
1197 | } |
662 | |
1198 | |
663 | static void |
1199 | INLINE void |
664 | free_coro_mortal (pTHX) |
1200 | free_coro_mortal (pTHX) |
665 | { |
1201 | { |
666 | if (coro_mortal) |
1202 | if (expect_true (coro_mortal)) |
667 | { |
1203 | { |
668 | SvREFCNT_dec (coro_mortal); |
1204 | SvREFCNT_dec (coro_mortal); |
669 | coro_mortal = 0; |
1205 | coro_mortal = 0; |
670 | } |
1206 | } |
671 | } |
1207 | } |
… | |
… | |
673 | static int |
1209 | static int |
674 | runops_trace (pTHX) |
1210 | runops_trace (pTHX) |
675 | { |
1211 | { |
676 | COP *oldcop = 0; |
1212 | COP *oldcop = 0; |
677 | int oldcxix = -2; |
1213 | int oldcxix = -2; |
678 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
679 | coro_cctx *cctx = coro->cctx; |
|
|
680 | |
1214 | |
681 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1215 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
682 | { |
1216 | { |
683 | PERL_ASYNC_CHECK (); |
1217 | PERL_ASYNC_CHECK (); |
684 | |
1218 | |
685 | if (cctx->flags & CC_TRACE_ALL) |
1219 | if (cctx_current->flags & CC_TRACE_ALL) |
686 | { |
1220 | { |
687 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1221 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
688 | { |
1222 | { |
689 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1223 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
690 | SV **bot, **top; |
1224 | SV **bot, **top; |
691 | AV *av = newAV (); /* return values */ |
1225 | AV *av = newAV (); /* return values */ |
692 | SV **cb; |
1226 | SV **cb; |
… | |
… | |
700 | bot = PL_stack_base + cx->blk_oldsp + 1; |
1234 | bot = PL_stack_base + cx->blk_oldsp + 1; |
701 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
1235 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
702 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
1236 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
703 | : bot; |
1237 | : bot; |
704 | |
1238 | |
|
|
1239 | av_extend (av, top - bot); |
705 | while (bot < top) |
1240 | while (bot < top) |
706 | av_push (av, SvREFCNT_inc (*bot++)); |
1241 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
707 | |
1242 | |
708 | PL_runops = RUNOPS_DEFAULT; |
1243 | PL_runops = RUNOPS_DEFAULT; |
709 | ENTER; |
1244 | ENTER; |
710 | SAVETMPS; |
1245 | SAVETMPS; |
711 | EXTEND (SP, 3); |
1246 | EXTEND (SP, 3); |
… | |
… | |
728 | |
1263 | |
729 | if (PL_curcop != &PL_compiling) |
1264 | if (PL_curcop != &PL_compiling) |
730 | { |
1265 | { |
731 | SV **cb; |
1266 | SV **cb; |
732 | |
1267 | |
733 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1268 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
734 | { |
1269 | { |
735 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1270 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
736 | |
1271 | |
737 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1272 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
738 | { |
1273 | { |
739 | runops_proc_t old_runops = PL_runops; |
|
|
740 | dSP; |
1274 | dSP; |
741 | GV *gv = CvGV (cx->blk_sub.cv); |
1275 | GV *gv = CvGV (cx->blk_sub.cv); |
742 | SV *fullname = sv_2mortal (newSV (0)); |
1276 | SV *fullname = sv_2mortal (newSV (0)); |
743 | |
1277 | |
744 | if (isGV (gv)) |
1278 | if (isGV (gv)) |
… | |
… | |
749 | SAVETMPS; |
1283 | SAVETMPS; |
750 | EXTEND (SP, 3); |
1284 | EXTEND (SP, 3); |
751 | PUSHMARK (SP); |
1285 | PUSHMARK (SP); |
752 | PUSHs (&PL_sv_yes); |
1286 | PUSHs (&PL_sv_yes); |
753 | PUSHs (fullname); |
1287 | PUSHs (fullname); |
754 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1288 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
755 | PUTBACK; |
1289 | PUTBACK; |
756 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1290 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
757 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1291 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
758 | SPAGAIN; |
1292 | SPAGAIN; |
759 | FREETMPS; |
1293 | FREETMPS; |
… | |
… | |
762 | } |
1296 | } |
763 | |
1297 | |
764 | oldcxix = cxstack_ix; |
1298 | oldcxix = cxstack_ix; |
765 | } |
1299 | } |
766 | |
1300 | |
767 | if (cctx->flags & CC_TRACE_LINE) |
1301 | if (cctx_current->flags & CC_TRACE_LINE) |
768 | { |
1302 | { |
769 | dSP; |
1303 | dSP; |
770 | |
1304 | |
771 | PL_runops = RUNOPS_DEFAULT; |
1305 | PL_runops = RUNOPS_DEFAULT; |
772 | ENTER; |
1306 | ENTER; |
… | |
… | |
791 | |
1325 | |
792 | TAINT_NOT; |
1326 | TAINT_NOT; |
793 | return 0; |
1327 | return 0; |
794 | } |
1328 | } |
795 | |
1329 | |
796 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1330 | static struct CoroSLF cctx_ssl_frame; |
797 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1331 | |
798 | /* during execution of a perl program */ |
1332 | static void |
|
|
1333 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1334 | { |
|
|
1335 | ta->prev = 0; |
|
|
1336 | } |
|
|
1337 | |
|
|
1338 | static int |
|
|
1339 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1340 | { |
|
|
1341 | *frame = cctx_ssl_frame; |
|
|
1342 | |
|
|
1343 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1344 | } |
|
|
1345 | |
|
|
1346 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
799 | static void NOINLINE |
1347 | static void NOINLINE |
800 | prepare_cctx (pTHX_ coro_cctx *cctx) |
1348 | cctx_prepare (pTHX) |
801 | { |
1349 | { |
802 | dSP; |
|
|
803 | LOGOP myop; |
|
|
804 | |
|
|
805 | PL_top_env = &PL_start_env; |
1350 | PL_top_env = &PL_start_env; |
806 | |
1351 | |
807 | if (cctx->flags & CC_TRACE) |
1352 | if (cctx_current->flags & CC_TRACE) |
808 | PL_runops = runops_trace; |
1353 | PL_runops = runops_trace; |
809 | |
1354 | |
810 | Zero (&myop, 1, LOGOP); |
1355 | /* we already must be executing an SLF op, there is no other valid way |
811 | myop.op_next = PL_op; |
1356 | * that can lead to creation of a new cctx */ |
812 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1357 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1358 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
813 | |
1359 | |
814 | PUSHMARK (SP); |
1360 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
815 | EXTEND (SP, 2); |
1361 | cctx_ssl_frame = slf_frame; |
816 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1362 | |
817 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1363 | slf_frame.prepare = slf_prepare_set_stacklevel; |
818 | PUTBACK; |
1364 | slf_frame.check = slf_check_set_stacklevel; |
819 | PL_op = (OP *)&myop; |
1365 | } |
820 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1366 | |
821 | SPAGAIN; |
1367 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1368 | INLINE void |
|
|
1369 | transfer_tail (pTHX) |
|
|
1370 | { |
|
|
1371 | free_coro_mortal (aTHX); |
822 | } |
1372 | } |
823 | |
1373 | |
824 | /* |
1374 | /* |
825 | * this is a _very_ stripped down perl interpreter ;) |
1375 | * this is a _very_ stripped down perl interpreter ;) |
826 | */ |
1376 | */ |
827 | static void |
1377 | static void |
828 | coro_run (void *arg) |
1378 | cctx_run (void *arg) |
829 | { |
1379 | { |
|
|
1380 | #ifdef USE_ITHREADS |
|
|
1381 | # if CORO_PTHREAD |
|
|
1382 | PERL_SET_CONTEXT (coro_thx); |
|
|
1383 | # endif |
|
|
1384 | #endif |
|
|
1385 | { |
830 | dTHX; |
1386 | dTHX; |
831 | |
1387 | |
832 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1388 | /* normally we would need to skip the entersub here */ |
833 | UNLOCK; |
1389 | /* not doing so will re-execute it, which is exactly what we want */ |
834 | |
|
|
835 | /* we now skip the entersub that lead to transfer() */ |
|
|
836 | PL_op = PL_op->op_next; |
1390 | /* PL_nop = PL_nop->op_next */ |
837 | |
1391 | |
838 | /* inject a fake subroutine call to cctx_init */ |
1392 | /* inject a fake subroutine call to cctx_init */ |
839 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
1393 | cctx_prepare (aTHX); |
840 | |
1394 | |
|
|
1395 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1396 | transfer_tail (aTHX); |
|
|
1397 | |
841 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1398 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
842 | PL_restartop = PL_op; |
1399 | PL_restartop = PL_op; |
843 | perl_run (PL_curinterp); |
1400 | perl_run (PL_curinterp); |
844 | |
|
|
845 | /* |
1401 | /* |
|
|
1402 | * Unfortunately, there is no way to get at the return values of the |
|
|
1403 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1404 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1405 | */ |
|
|
1406 | |
|
|
1407 | /* |
846 | * If perl-run returns we assume exit() was being called or the coro |
1408 | * If perl-run returns we assume exit() was being called or the coro |
847 | * fell off the end, which seems to be the only valid (non-bug) |
1409 | * fell off the end, which seems to be the only valid (non-bug) |
848 | * reason for perl_run to return. We try to exit by jumping to the |
1410 | * reason for perl_run to return. We try to exit by jumping to the |
849 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1411 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
850 | * coroutine as Coro has no such concept |
1412 | * coroutine as Coro has no such concept. |
|
|
1413 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1414 | * that backend are too broken to do it in a standards-compliant way. |
851 | */ |
1415 | */ |
852 | PL_top_env = main_top_env; |
1416 | PL_top_env = main_top_env; |
853 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1417 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1418 | } |
854 | } |
1419 | } |
855 | |
1420 | |
856 | static coro_cctx * |
1421 | static coro_cctx * |
857 | cctx_new () |
1422 | cctx_new () |
858 | { |
1423 | { |
859 | coro_cctx *cctx; |
1424 | coro_cctx *cctx; |
|
|
1425 | |
|
|
1426 | ++cctx_count; |
|
|
1427 | New (0, cctx, 1, coro_cctx); |
|
|
1428 | |
|
|
1429 | cctx->gen = cctx_gen; |
|
|
1430 | cctx->flags = 0; |
|
|
1431 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1432 | |
|
|
1433 | return cctx; |
|
|
1434 | } |
|
|
1435 | |
|
|
1436 | /* create a new cctx only suitable as source */ |
|
|
1437 | static coro_cctx * |
|
|
1438 | cctx_new_empty () |
|
|
1439 | { |
|
|
1440 | coro_cctx *cctx = cctx_new (); |
|
|
1441 | |
|
|
1442 | cctx->sptr = 0; |
|
|
1443 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1444 | |
|
|
1445 | return cctx; |
|
|
1446 | } |
|
|
1447 | |
|
|
1448 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1449 | static coro_cctx * |
|
|
1450 | cctx_new_run () |
|
|
1451 | { |
|
|
1452 | coro_cctx *cctx = cctx_new (); |
860 | void *stack_start; |
1453 | void *stack_start; |
861 | size_t stack_size; |
1454 | size_t stack_size; |
862 | |
1455 | |
863 | ++cctx_count; |
|
|
864 | |
|
|
865 | Newz (0, cctx, 1, coro_cctx); |
|
|
866 | |
|
|
867 | #if HAVE_MMAP |
1456 | #if HAVE_MMAP |
868 | |
|
|
869 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1457 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
870 | /* mmap supposedly does allocate-on-write for us */ |
1458 | /* mmap supposedly does allocate-on-write for us */ |
871 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1459 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
872 | |
1460 | |
873 | if (cctx->sptr != (void *)-1) |
1461 | if (cctx->sptr != (void *)-1) |
874 | { |
1462 | { |
875 | # if CORO_STACKGUARD |
1463 | #if CORO_STACKGUARD |
876 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1464 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
877 | # endif |
1465 | #endif |
878 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1466 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
879 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1467 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
880 | cctx->flags |= CC_MAPPED; |
1468 | cctx->flags |= CC_MAPPED; |
881 | } |
1469 | } |
882 | else |
1470 | else |
883 | #endif |
1471 | #endif |
884 | { |
1472 | { |
885 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1473 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
886 | New (0, cctx->sptr, coro_stacksize, long); |
1474 | New (0, cctx->sptr, cctx_stacksize, long); |
887 | |
1475 | |
888 | if (!cctx->sptr) |
1476 | if (!cctx->sptr) |
889 | { |
1477 | { |
890 | perror ("FATAL: unable to allocate stack for coroutine"); |
1478 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
891 | _exit (EXIT_FAILURE); |
1479 | _exit (EXIT_FAILURE); |
892 | } |
1480 | } |
893 | |
1481 | |
894 | stack_start = cctx->sptr; |
1482 | stack_start = cctx->sptr; |
895 | stack_size = cctx->ssize; |
1483 | stack_size = cctx->ssize; |
896 | } |
1484 | } |
897 | |
1485 | |
898 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1486 | #if CORO_USE_VALGRIND |
|
|
1487 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1488 | #endif |
|
|
1489 | |
899 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1490 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
900 | |
1491 | |
901 | return cctx; |
1492 | return cctx; |
902 | } |
1493 | } |
903 | |
1494 | |
904 | static void |
1495 | static void |
905 | cctx_destroy (coro_cctx *cctx) |
1496 | cctx_destroy (coro_cctx *cctx) |
906 | { |
1497 | { |
907 | if (!cctx) |
1498 | if (!cctx) |
908 | return; |
1499 | return; |
909 | |
1500 | |
|
|
1501 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? |
|
|
1502 | |
910 | --cctx_count; |
1503 | --cctx_count; |
|
|
1504 | coro_destroy (&cctx->cctx); |
911 | |
1505 | |
|
|
1506 | /* coro_transfer creates new, empty cctx's */ |
|
|
1507 | if (cctx->sptr) |
|
|
1508 | { |
912 | #if CORO_USE_VALGRIND |
1509 | #if CORO_USE_VALGRIND |
913 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1510 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
1511 | #endif |
|
|
1512 | |
|
|
1513 | #if HAVE_MMAP |
|
|
1514 | if (cctx->flags & CC_MAPPED) |
|
|
1515 | munmap (cctx->sptr, cctx->ssize); |
|
|
1516 | else |
914 | #endif |
1517 | #endif |
915 | |
|
|
916 | #if HAVE_MMAP |
|
|
917 | if (cctx->flags & CC_MAPPED) |
|
|
918 | munmap (cctx->sptr, cctx->ssize); |
|
|
919 | else |
|
|
920 | #endif |
|
|
921 | Safefree (cctx->sptr); |
1518 | Safefree (cctx->sptr); |
|
|
1519 | } |
922 | |
1520 | |
923 | Safefree (cctx); |
1521 | Safefree (cctx); |
924 | } |
1522 | } |
|
|
1523 | |
|
|
1524 | /* wether this cctx should be destructed */ |
|
|
1525 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
925 | |
1526 | |
926 | static coro_cctx * |
1527 | static coro_cctx * |
927 | cctx_get (pTHX) |
1528 | cctx_get (pTHX) |
928 | { |
1529 | { |
929 | while (cctx_first) |
1530 | while (expect_true (cctx_first)) |
930 | { |
1531 | { |
931 | coro_cctx *cctx = cctx_first; |
1532 | coro_cctx *cctx = cctx_first; |
932 | cctx_first = cctx->next; |
1533 | cctx_first = cctx->next; |
933 | --cctx_idle; |
1534 | --cctx_idle; |
934 | |
1535 | |
935 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
1536 | if (expect_true (!CCTX_EXPIRED (cctx))) |
936 | return cctx; |
1537 | return cctx; |
937 | |
1538 | |
938 | cctx_destroy (cctx); |
1539 | cctx_destroy (cctx); |
939 | } |
1540 | } |
940 | |
1541 | |
941 | return cctx_new (); |
1542 | return cctx_new_run (); |
942 | } |
1543 | } |
943 | |
1544 | |
944 | static void |
1545 | static void |
945 | cctx_put (coro_cctx *cctx) |
1546 | cctx_put (coro_cctx *cctx) |
946 | { |
1547 | { |
|
|
1548 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1549 | |
947 | /* free another cctx if overlimit */ |
1550 | /* free another cctx if overlimit */ |
948 | if (cctx_idle >= MAX_IDLE_CCTX) |
1551 | if (expect_false (cctx_idle >= cctx_max_idle)) |
949 | { |
1552 | { |
950 | coro_cctx *first = cctx_first; |
1553 | coro_cctx *first = cctx_first; |
951 | cctx_first = first->next; |
1554 | cctx_first = first->next; |
952 | --cctx_idle; |
1555 | --cctx_idle; |
953 | |
1556 | |
… | |
… | |
959 | cctx_first = cctx; |
1562 | cctx_first = cctx; |
960 | } |
1563 | } |
961 | |
1564 | |
962 | /** coroutine switching *****************************************************/ |
1565 | /** coroutine switching *****************************************************/ |
963 | |
1566 | |
964 | static void NOINLINE |
1567 | static void |
965 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1568 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
966 | { |
1569 | { |
967 | if (prev != next) |
1570 | /* TODO: throwing up here is considered harmful */ |
|
|
1571 | |
|
|
1572 | if (expect_true (prev != next)) |
968 | { |
1573 | { |
969 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
1574 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
970 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1575 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
971 | |
1576 | |
972 | if (next->flags & CF_RUNNING) |
1577 | if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) |
973 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
974 | |
|
|
975 | if (next->flags & CF_DESTROYED) |
|
|
976 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1578 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
977 | |
1579 | |
|
|
1580 | #if !PERL_VERSION_ATLEAST (5,10,0) |
978 | if (PL_lex_state != LEX_NOTPARSING) |
1581 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
979 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1582 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1583 | #endif |
980 | } |
1584 | } |
981 | } |
1585 | } |
982 | |
1586 | |
983 | /* always use the TRANSFER macro */ |
1587 | /* always use the TRANSFER macro */ |
984 | static void NOINLINE |
1588 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
985 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1589 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
986 | { |
1590 | { |
987 | dSTACKLEVEL; |
1591 | dSTACKLEVEL; |
988 | |
1592 | |
989 | /* sometimes transfer is only called to set idle_sp */ |
1593 | /* sometimes transfer is only called to set idle_sp */ |
990 | if (!next) |
1594 | if (expect_false (!prev)) |
991 | { |
1595 | { |
992 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1596 | cctx_current->idle_sp = STACKLEVEL; |
993 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1597 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
994 | } |
|
|
995 | else if (prev != next) |
|
|
996 | { |
1598 | } |
|
|
1599 | else if (expect_true (prev != next)) |
|
|
1600 | { |
997 | coro_cctx *prev__cctx; |
1601 | coro_cctx *cctx_prev; |
998 | |
1602 | |
999 | if (prev->flags & CF_NEW) |
1603 | if (expect_false (prev->flags & CF_NEW)) |
1000 | { |
1604 | { |
1001 | /* create a new empty context */ |
1605 | /* create a new empty/source context */ |
1002 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1003 | prev->flags &= ~CF_NEW; |
1606 | prev->flags &= ~CF_NEW; |
1004 | prev->flags |= CF_RUNNING; |
1607 | prev->flags |= CF_RUNNING; |
1005 | } |
1608 | } |
1006 | |
1609 | |
1007 | prev->flags &= ~CF_RUNNING; |
1610 | prev->flags &= ~CF_RUNNING; |
1008 | next->flags |= CF_RUNNING; |
1611 | next->flags |= CF_RUNNING; |
1009 | |
1612 | |
1010 | LOCK; |
1613 | /* first get rid of the old state */ |
|
|
1614 | save_perl (aTHX_ prev); |
1011 | |
1615 | |
1012 | if (next->flags & CF_NEW) |
1616 | if (expect_false (next->flags & CF_NEW)) |
1013 | { |
1617 | { |
1014 | /* need to start coroutine */ |
1618 | /* need to start coroutine */ |
1015 | next->flags &= ~CF_NEW; |
1619 | next->flags &= ~CF_NEW; |
1016 | /* first get rid of the old state */ |
|
|
1017 | save_perl (aTHX_ prev); |
|
|
1018 | /* setup coroutine call */ |
1620 | /* setup coroutine call */ |
1019 | coro_setup (aTHX_ next); |
1621 | init_perl (aTHX_ next); |
1020 | } |
1622 | } |
1021 | else |
1623 | else |
|
|
1624 | load_perl (aTHX_ next); |
|
|
1625 | |
|
|
1626 | /* possibly untie and reuse the cctx */ |
|
|
1627 | if (expect_true ( |
|
|
1628 | cctx_current->idle_sp == STACKLEVEL |
|
|
1629 | && !(cctx_current->flags & CC_TRACE) |
|
|
1630 | && !force_cctx |
|
|
1631 | )) |
1022 | { |
1632 | { |
1023 | /* coroutine already started */ |
1633 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1024 | save_perl (aTHX_ prev); |
1634 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1025 | load_perl (aTHX_ next); |
1635 | |
|
|
1636 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
|
|
1637 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
|
|
1638 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
|
|
1639 | if (expect_true (!next->cctx)) |
|
|
1640 | next->cctx = cctx_get (aTHX); |
|
|
1641 | |
|
|
1642 | cctx_put (cctx_current); |
1026 | } |
1643 | } |
|
|
1644 | else |
|
|
1645 | prev->cctx = cctx_current; |
1027 | |
1646 | |
1028 | prev__cctx = prev->cctx; |
1647 | ++next->usecount; |
1029 | |
1648 | |
1030 | /* possibly "free" the cctx */ |
1649 | cctx_prev = cctx_current; |
1031 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
1650 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
|
|
1651 | |
|
|
1652 | next->cctx = 0; |
|
|
1653 | |
|
|
1654 | if (expect_false (cctx_prev != cctx_current)) |
1032 | { |
1655 | { |
1033 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1656 | cctx_prev->top_env = PL_top_env; |
1034 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1657 | PL_top_env = cctx_current->top_env; |
1035 | |
1658 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1036 | prev->cctx = 0; |
|
|
1037 | |
|
|
1038 | cctx_put (prev__cctx); |
|
|
1039 | } |
1659 | } |
1040 | |
1660 | |
1041 | ++next->usecount; |
1661 | transfer_tail (aTHX); |
1042 | |
|
|
1043 | if (!next->cctx) |
|
|
1044 | next->cctx = cctx_get (aTHX); |
|
|
1045 | |
|
|
1046 | if (prev__cctx != next->cctx) |
|
|
1047 | { |
|
|
1048 | prev__cctx->top_env = PL_top_env; |
|
|
1049 | PL_top_env = next->cctx->top_env; |
|
|
1050 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
1051 | } |
|
|
1052 | |
|
|
1053 | free_coro_mortal (aTHX); |
|
|
1054 | UNLOCK; |
|
|
1055 | } |
1662 | } |
1056 | } |
1663 | } |
1057 | |
1664 | |
1058 | struct transfer_args |
|
|
1059 | { |
|
|
1060 | struct coro *prev, *next; |
|
|
1061 | }; |
|
|
1062 | |
|
|
1063 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1665 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1064 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1666 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1065 | |
1667 | |
1066 | /** high level stuff ********************************************************/ |
1668 | /** high level stuff ********************************************************/ |
1067 | |
1669 | |
1068 | static int |
1670 | static int |
1069 | coro_state_destroy (pTHX_ struct coro *coro) |
1671 | coro_state_destroy (pTHX_ struct coro *coro) |
1070 | { |
1672 | { |
1071 | if (coro->flags & CF_DESTROYED) |
1673 | if (coro->flags & CF_DESTROYED) |
1072 | return 0; |
1674 | return 0; |
|
|
1675 | |
|
|
1676 | if (coro->on_destroy && !PL_dirty) |
|
|
1677 | coro->on_destroy (aTHX_ coro); |
1073 | |
1678 | |
1074 | coro->flags |= CF_DESTROYED; |
1679 | coro->flags |= CF_DESTROYED; |
1075 | |
1680 | |
1076 | if (coro->flags & CF_READY) |
1681 | if (coro->flags & CF_READY) |
1077 | { |
1682 | { |
1078 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1683 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1079 | /* alternative: look through all ready queues and remove the coro */ |
1684 | /* alternative: look through all ready queues and remove the coro */ |
1080 | LOCK; |
|
|
1081 | --coro_nready; |
1685 | --coro_nready; |
1082 | UNLOCK; |
|
|
1083 | } |
1686 | } |
1084 | else |
1687 | else |
1085 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1688 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1086 | |
1689 | |
1087 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1690 | if (coro->mainstack |
1088 | { |
1691 | && coro->mainstack != main_mainstack |
1089 | struct coro temp; |
1692 | && coro->slot |
1090 | |
1693 | && !PL_dirty) |
1091 | if (coro->flags & CF_RUNNING) |
|
|
1092 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1093 | |
|
|
1094 | save_perl (aTHX_ &temp); |
|
|
1095 | load_perl (aTHX_ coro); |
1694 | destroy_perl (aTHX_ coro); |
1096 | |
|
|
1097 | coro_destroy (aTHX_ coro); |
|
|
1098 | |
|
|
1099 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
|
|
1100 | |
|
|
1101 | coro->mainstack = 0; |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | cctx_destroy (coro->cctx); |
|
|
1105 | SvREFCNT_dec (coro->args); |
|
|
1106 | |
1695 | |
1107 | if (coro->next) coro->next->prev = coro->prev; |
1696 | if (coro->next) coro->next->prev = coro->prev; |
1108 | if (coro->prev) coro->prev->next = coro->next; |
1697 | if (coro->prev) coro->prev->next = coro->next; |
1109 | if (coro == coro_first) coro_first = coro->next; |
1698 | if (coro == coro_first) coro_first = coro->next; |
|
|
1699 | |
|
|
1700 | cctx_destroy (coro->cctx); |
|
|
1701 | SvREFCNT_dec (coro->startcv); |
|
|
1702 | SvREFCNT_dec (coro->args); |
|
|
1703 | SvREFCNT_dec (coro->swap_sv); |
|
|
1704 | SvREFCNT_dec (CORO_THROW); |
1110 | |
1705 | |
1111 | return 1; |
1706 | return 1; |
1112 | } |
1707 | } |
1113 | |
1708 | |
1114 | static int |
1709 | static int |
… | |
… | |
1148 | # define MGf_DUP 0 |
1743 | # define MGf_DUP 0 |
1149 | #endif |
1744 | #endif |
1150 | }; |
1745 | }; |
1151 | |
1746 | |
1152 | static void |
1747 | static void |
1153 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1748 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1154 | { |
1749 | { |
1155 | ta->prev = SvSTATE (prev_sv); |
1750 | ta->prev = SvSTATE (prev_sv); |
1156 | ta->next = SvSTATE (next_sv); |
1751 | ta->next = SvSTATE (next_sv); |
1157 | TRANSFER_CHECK (*ta); |
1752 | TRANSFER_CHECK (*ta); |
1158 | } |
1753 | } |
1159 | |
1754 | |
1160 | static void |
1755 | static void |
1161 | api_transfer (SV *prev_sv, SV *next_sv) |
1756 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
|
|
1757 | { |
|
|
1758 | struct coro_transfer_args ta; |
|
|
1759 | |
|
|
1760 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
|
|
1761 | TRANSFER (ta, 1); |
|
|
1762 | } |
|
|
1763 | |
|
|
1764 | /** Coro ********************************************************************/ |
|
|
1765 | |
|
|
1766 | INLINE void |
|
|
1767 | coro_enq (pTHX_ struct coro *coro) |
|
|
1768 | { |
|
|
1769 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
|
|
1770 | |
|
|
1771 | SvREFCNT_inc_NN (coro->hv); |
|
|
1772 | |
|
|
1773 | coro->next_ready = 0; |
|
|
1774 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1775 | ready [1] = coro; |
|
|
1776 | } |
|
|
1777 | |
|
|
1778 | INLINE struct coro * |
|
|
1779 | coro_deq (pTHX) |
|
|
1780 | { |
|
|
1781 | int prio; |
|
|
1782 | |
|
|
1783 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
|
|
1784 | { |
|
|
1785 | struct coro **ready = coro_ready [prio]; |
|
|
1786 | |
|
|
1787 | if (ready [0]) |
|
|
1788 | { |
|
|
1789 | struct coro *coro = ready [0]; |
|
|
1790 | ready [0] = coro->next_ready; |
|
|
1791 | return coro; |
|
|
1792 | } |
|
|
1793 | } |
|
|
1794 | |
|
|
1795 | return 0; |
|
|
1796 | } |
|
|
1797 | |
|
|
1798 | static void |
|
|
1799 | invoke_sv_ready_hook_helper (void) |
1162 | { |
1800 | { |
1163 | dTHX; |
1801 | dTHX; |
1164 | struct transfer_args ta; |
1802 | dSP; |
1165 | |
1803 | |
1166 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1804 | ENTER; |
1167 | TRANSFER (ta); |
1805 | SAVETMPS; |
1168 | } |
|
|
1169 | |
1806 | |
1170 | /** Coro ********************************************************************/ |
1807 | PUSHMARK (SP); |
|
|
1808 | PUTBACK; |
|
|
1809 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
1171 | |
1810 | |
1172 | static void |
1811 | FREETMPS; |
1173 | coro_enq (pTHX_ SV *coro_sv) |
1812 | LEAVE; |
1174 | { |
|
|
1175 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
1176 | } |
|
|
1177 | |
|
|
1178 | static SV * |
|
|
1179 | coro_deq (pTHX_ int min_prio) |
|
|
1180 | { |
|
|
1181 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
1182 | |
|
|
1183 | min_prio -= PRIO_MIN; |
|
|
1184 | if (min_prio < 0) |
|
|
1185 | min_prio = 0; |
|
|
1186 | |
|
|
1187 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
|
|
1188 | if (AvFILLp (coro_ready [prio]) >= 0) |
|
|
1189 | return av_shift (coro_ready [prio]); |
|
|
1190 | |
|
|
1191 | return 0; |
|
|
1192 | } |
1813 | } |
1193 | |
1814 | |
1194 | static int |
1815 | static int |
1195 | api_ready (SV *coro_sv) |
1816 | api_ready (pTHX_ SV *coro_sv) |
1196 | { |
1817 | { |
1197 | dTHX; |
|
|
1198 | struct coro *coro; |
|
|
1199 | |
|
|
1200 | if (SvROK (coro_sv)) |
|
|
1201 | coro_sv = SvRV (coro_sv); |
|
|
1202 | |
|
|
1203 | coro = SvSTATE (coro_sv); |
1818 | struct coro *coro = SvSTATE (coro_sv); |
1204 | |
1819 | |
1205 | if (coro->flags & CF_READY) |
1820 | if (coro->flags & CF_READY) |
1206 | return 0; |
1821 | return 0; |
1207 | |
1822 | |
1208 | coro->flags |= CF_READY; |
1823 | coro->flags |= CF_READY; |
1209 | |
1824 | |
1210 | LOCK; |
1825 | coro_enq (aTHX_ coro); |
1211 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1826 | |
1212 | ++coro_nready; |
1827 | if (!coro_nready++) |
1213 | UNLOCK; |
1828 | if (coroapi.readyhook) |
|
|
1829 | coroapi.readyhook (); |
1214 | |
1830 | |
1215 | return 1; |
1831 | return 1; |
1216 | } |
1832 | } |
1217 | |
1833 | |
1218 | static int |
1834 | static int |
1219 | api_is_ready (SV *coro_sv) |
1835 | api_is_ready (pTHX_ SV *coro_sv) |
1220 | { |
1836 | { |
1221 | dTHX; |
|
|
1222 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1837 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1223 | } |
1838 | } |
1224 | |
1839 | |
1225 | static void |
1840 | /* expects to own a reference to next->hv */ |
|
|
1841 | INLINE void |
1226 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1842 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1227 | { |
1843 | { |
1228 | SV *prev_sv, *next_sv; |
|
|
1229 | |
|
|
1230 | for (;;) |
|
|
1231 | { |
|
|
1232 | LOCK; |
|
|
1233 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1234 | |
|
|
1235 | /* nothing to schedule: call the idle handler */ |
|
|
1236 | if (!next_sv) |
|
|
1237 | { |
|
|
1238 | dSP; |
|
|
1239 | UNLOCK; |
|
|
1240 | |
|
|
1241 | ENTER; |
|
|
1242 | SAVETMPS; |
|
|
1243 | |
|
|
1244 | PUSHMARK (SP); |
|
|
1245 | PUTBACK; |
|
|
1246 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1247 | |
|
|
1248 | FREETMPS; |
|
|
1249 | LEAVE; |
|
|
1250 | continue; |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | ta->next = SvSTATE (next_sv); |
|
|
1254 | |
|
|
1255 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1256 | if (ta->next->flags & CF_DESTROYED) |
|
|
1257 | { |
|
|
1258 | UNLOCK; |
|
|
1259 | SvREFCNT_dec (next_sv); |
|
|
1260 | /* coro_nready is already taken care of by destroy */ |
|
|
1261 | continue; |
|
|
1262 | } |
|
|
1263 | |
|
|
1264 | --coro_nready; |
|
|
1265 | UNLOCK; |
|
|
1266 | break; |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | /* free this only after the transfer */ |
|
|
1270 | prev_sv = SvRV (coro_current); |
1844 | SV *prev_sv = SvRV (coro_current); |
|
|
1845 | |
1271 | ta->prev = SvSTATE (prev_sv); |
1846 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1847 | ta->next = next; |
|
|
1848 | |
1272 | TRANSFER_CHECK (*ta); |
1849 | TRANSFER_CHECK (*ta); |
1273 | assert (ta->next->flags & CF_READY); |
1850 | |
1274 | ta->next->flags &= ~CF_READY; |
|
|
1275 | SvRV_set (coro_current, next_sv); |
1851 | SvRV_set (coro_current, (SV *)next->hv); |
1276 | |
1852 | |
1277 | LOCK; |
|
|
1278 | free_coro_mortal (aTHX); |
1853 | free_coro_mortal (aTHX); |
1279 | coro_mortal = prev_sv; |
1854 | coro_mortal = prev_sv; |
1280 | UNLOCK; |
|
|
1281 | } |
1855 | } |
1282 | |
1856 | |
1283 | static void |
1857 | static void |
|
|
1858 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1859 | { |
|
|
1860 | for (;;) |
|
|
1861 | { |
|
|
1862 | struct coro *next = coro_deq (aTHX); |
|
|
1863 | |
|
|
1864 | if (expect_true (next)) |
|
|
1865 | { |
|
|
1866 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1867 | if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) |
|
|
1868 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1869 | else |
|
|
1870 | { |
|
|
1871 | next->flags &= ~CF_READY; |
|
|
1872 | --coro_nready; |
|
|
1873 | |
|
|
1874 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1875 | break; |
|
|
1876 | } |
|
|
1877 | } |
|
|
1878 | else |
|
|
1879 | { |
|
|
1880 | /* nothing to schedule: call the idle handler */ |
|
|
1881 | if (SvROK (sv_idle) |
|
|
1882 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1883 | { |
|
|
1884 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1885 | croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught"); |
|
|
1886 | |
|
|
1887 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1888 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1889 | --coro_nready; |
|
|
1890 | } |
|
|
1891 | else |
|
|
1892 | { |
|
|
1893 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
1894 | dSP; |
|
|
1895 | |
|
|
1896 | ENTER; |
|
|
1897 | SAVETMPS; |
|
|
1898 | |
|
|
1899 | PUSHMARK (SP); |
|
|
1900 | PUTBACK; |
|
|
1901 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1902 | |
|
|
1903 | FREETMPS; |
|
|
1904 | LEAVE; |
|
|
1905 | } |
|
|
1906 | } |
|
|
1907 | } |
|
|
1908 | } |
|
|
1909 | |
|
|
1910 | INLINE void |
1284 | prepare_cede (pTHX_ struct transfer_args *ta) |
1911 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1285 | { |
1912 | { |
1286 | api_ready (coro_current); |
1913 | api_ready (aTHX_ coro_current); |
1287 | prepare_schedule (aTHX_ ta); |
1914 | prepare_schedule (aTHX_ ta); |
1288 | } |
1915 | } |
1289 | |
1916 | |
|
|
1917 | INLINE void |
|
|
1918 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1919 | { |
|
|
1920 | SV *prev = SvRV (coro_current); |
|
|
1921 | |
|
|
1922 | if (coro_nready) |
|
|
1923 | { |
|
|
1924 | prepare_schedule (aTHX_ ta); |
|
|
1925 | api_ready (aTHX_ prev); |
|
|
1926 | } |
|
|
1927 | else |
|
|
1928 | prepare_nop (aTHX_ ta); |
|
|
1929 | } |
|
|
1930 | |
|
|
1931 | static void |
|
|
1932 | api_schedule (pTHX) |
|
|
1933 | { |
|
|
1934 | struct coro_transfer_args ta; |
|
|
1935 | |
|
|
1936 | prepare_schedule (aTHX_ &ta); |
|
|
1937 | TRANSFER (ta, 1); |
|
|
1938 | } |
|
|
1939 | |
|
|
1940 | static void |
|
|
1941 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1942 | { |
|
|
1943 | struct coro_transfer_args ta; |
|
|
1944 | struct coro *next = SvSTATE (coro_sv); |
|
|
1945 | |
|
|
1946 | SvREFCNT_inc_NN (coro_sv); |
|
|
1947 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1948 | } |
|
|
1949 | |
1290 | static int |
1950 | static int |
1291 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1951 | api_cede (pTHX) |
1292 | { |
1952 | { |
1293 | if (coro_nready) |
1953 | struct coro_transfer_args ta; |
1294 | { |
1954 | |
1295 | SV *prev = SvRV (coro_current); |
|
|
1296 | prepare_schedule (aTHX_ ta); |
1955 | prepare_cede (aTHX_ &ta); |
1297 | api_ready (prev); |
1956 | |
|
|
1957 | if (expect_true (ta.prev != ta.next)) |
|
|
1958 | { |
|
|
1959 | TRANSFER (ta, 1); |
1298 | return 1; |
1960 | return 1; |
1299 | } |
1961 | } |
1300 | else |
1962 | else |
1301 | return 0; |
1963 | return 0; |
1302 | } |
1964 | } |
1303 | |
1965 | |
1304 | static void |
|
|
1305 | api_schedule (void) |
|
|
1306 | { |
|
|
1307 | dTHX; |
|
|
1308 | struct transfer_args ta; |
|
|
1309 | |
|
|
1310 | prepare_schedule (aTHX_ &ta); |
|
|
1311 | TRANSFER (ta); |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | static int |
1966 | static int |
1315 | api_cede (void) |
1967 | api_cede_notself (pTHX) |
1316 | { |
1968 | { |
1317 | dTHX; |
1969 | if (coro_nready) |
|
|
1970 | { |
1318 | struct transfer_args ta; |
1971 | struct coro_transfer_args ta; |
1319 | |
1972 | |
1320 | prepare_cede (aTHX_ &ta); |
1973 | prepare_cede_notself (aTHX_ &ta); |
1321 | |
|
|
1322 | if (ta.prev != ta.next) |
|
|
1323 | { |
|
|
1324 | TRANSFER (ta); |
1974 | TRANSFER (ta, 1); |
1325 | return 1; |
1975 | return 1; |
1326 | } |
1976 | } |
1327 | else |
1977 | else |
1328 | return 0; |
1978 | return 0; |
1329 | } |
1979 | } |
1330 | |
1980 | |
1331 | static int |
1981 | static void |
1332 | api_cede_notself (void) |
|
|
1333 | { |
|
|
1334 | dTHX; |
|
|
1335 | struct transfer_args ta; |
|
|
1336 | |
|
|
1337 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1338 | { |
|
|
1339 | TRANSFER (ta); |
|
|
1340 | return 1; |
|
|
1341 | } |
|
|
1342 | else |
|
|
1343 | return 0; |
|
|
1344 | } |
|
|
1345 | |
|
|
1346 | static void |
|
|
1347 | api_trace (SV *coro_sv, int flags) |
1982 | api_trace (pTHX_ SV *coro_sv, int flags) |
1348 | { |
1983 | { |
1349 | dTHX; |
|
|
1350 | struct coro *coro = SvSTATE (coro_sv); |
1984 | struct coro *coro = SvSTATE (coro_sv); |
1351 | |
1985 | |
|
|
1986 | if (coro->flags & CF_RUNNING) |
|
|
1987 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
1988 | |
1352 | if (flags & CC_TRACE) |
1989 | if (flags & CC_TRACE) |
1353 | { |
1990 | { |
1354 | if (!coro->cctx) |
1991 | if (!coro->cctx) |
1355 | coro->cctx = cctx_new (); |
1992 | coro->cctx = cctx_new_run (); |
1356 | else if (!(coro->cctx->flags & CC_TRACE)) |
1993 | else if (!(coro->cctx->flags & CC_TRACE)) |
1357 | croak ("cannot enable tracing on coroutine with custom stack"); |
1994 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1358 | |
1995 | |
1359 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1996 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1360 | } |
1997 | } |
1361 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1998 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1362 | { |
1999 | { |
1363 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
2000 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1364 | |
2001 | |
1365 | if (coro->flags & CF_RUNNING) |
2002 | if (coro->flags & CF_RUNNING) |
1366 | PL_runops = RUNOPS_DEFAULT; |
2003 | PL_runops = RUNOPS_DEFAULT; |
1367 | else |
2004 | else |
1368 | coro->runops = RUNOPS_DEFAULT; |
2005 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
2006 | } |
|
|
2007 | } |
|
|
2008 | |
|
|
2009 | static void |
|
|
2010 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2011 | { |
|
|
2012 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
2013 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
2014 | |
|
|
2015 | if (on_destroyp) |
|
|
2016 | { |
|
|
2017 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
2018 | |
|
|
2019 | while (AvFILLp (on_destroy) >= 0) |
|
|
2020 | { |
|
|
2021 | dSP; /* don't disturb outer sp */ |
|
|
2022 | SV *cb = av_pop (on_destroy); |
|
|
2023 | |
|
|
2024 | PUSHMARK (SP); |
|
|
2025 | |
|
|
2026 | if (statusp) |
|
|
2027 | { |
|
|
2028 | int i; |
|
|
2029 | AV *status = (AV *)SvRV (*statusp); |
|
|
2030 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
2031 | |
|
|
2032 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
2033 | PUSHs (AvARRAY (status)[i]); |
|
|
2034 | } |
|
|
2035 | |
|
|
2036 | PUTBACK; |
|
|
2037 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
2038 | } |
|
|
2039 | } |
|
|
2040 | } |
|
|
2041 | |
|
|
2042 | static void |
|
|
2043 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2044 | { |
|
|
2045 | int i; |
|
|
2046 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2047 | AV *av = newAV (); |
|
|
2048 | |
|
|
2049 | /* items are actually not so common, so optimise for this case */ |
|
|
2050 | if (items) |
|
|
2051 | { |
|
|
2052 | av_extend (av, items - 1); |
|
|
2053 | |
|
|
2054 | for (i = 0; i < items; ++i) |
|
|
2055 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2056 | } |
|
|
2057 | |
|
|
2058 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
2059 | |
|
|
2060 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
2061 | api_ready (aTHX_ sv_manager); |
|
|
2062 | |
|
|
2063 | frame->prepare = prepare_schedule; |
|
|
2064 | frame->check = slf_check_repeat; |
|
|
2065 | |
|
|
2066 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2067 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2068 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2069 | } |
|
|
2070 | |
|
|
2071 | /*****************************************************************************/ |
|
|
2072 | /* async pool handler */ |
|
|
2073 | |
|
|
2074 | static int |
|
|
2075 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2076 | { |
|
|
2077 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2078 | struct coro *coro = (struct coro *)frame->data; |
|
|
2079 | |
|
|
2080 | if (!coro->invoke_cb) |
|
|
2081 | return 1; /* loop till we have invoke */ |
|
|
2082 | else |
|
|
2083 | { |
|
|
2084 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2085 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2086 | |
|
|
2087 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2088 | |
|
|
2089 | { |
|
|
2090 | dSP; |
|
|
2091 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2092 | PUTBACK; |
1369 | } |
2093 | } |
|
|
2094 | |
|
|
2095 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2096 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2097 | coro->invoke_av = 0; |
|
|
2098 | |
|
|
2099 | return 0; |
|
|
2100 | } |
|
|
2101 | } |
|
|
2102 | |
|
|
2103 | static void |
|
|
2104 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2105 | { |
|
|
2106 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2107 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2108 | |
|
|
2109 | if (expect_true (coro->saved_deffh)) |
|
|
2110 | { |
|
|
2111 | /* subsequent iteration */ |
|
|
2112 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2113 | coro->saved_deffh = 0; |
|
|
2114 | |
|
|
2115 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2116 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2117 | { |
|
|
2118 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
2119 | coro->invoke_av = newAV (); |
|
|
2120 | |
|
|
2121 | frame->prepare = prepare_nop; |
|
|
2122 | } |
|
|
2123 | else |
|
|
2124 | { |
|
|
2125 | av_clear (GvAV (PL_defgv)); |
|
|
2126 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2127 | |
|
|
2128 | coro->prio = 0; |
|
|
2129 | |
|
|
2130 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2131 | api_trace (aTHX_ coro_current, 0); |
|
|
2132 | |
|
|
2133 | frame->prepare = prepare_schedule; |
|
|
2134 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2135 | } |
|
|
2136 | } |
|
|
2137 | else |
|
|
2138 | { |
|
|
2139 | /* first iteration, simply fall through */ |
|
|
2140 | frame->prepare = prepare_nop; |
|
|
2141 | } |
|
|
2142 | |
|
|
2143 | frame->check = slf_check_pool_handler; |
|
|
2144 | frame->data = (void *)coro; |
|
|
2145 | } |
|
|
2146 | |
|
|
2147 | /*****************************************************************************/ |
|
|
2148 | /* rouse callback */ |
|
|
2149 | |
|
|
2150 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2151 | |
|
|
2152 | static void |
|
|
2153 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2154 | { |
|
|
2155 | dXSARGS; |
|
|
2156 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2157 | |
|
|
2158 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2159 | { |
|
|
2160 | /* first call, set args */ |
|
|
2161 | SV *coro = SvRV (data); |
|
|
2162 | AV *av = newAV (); |
|
|
2163 | |
|
|
2164 | SvRV_set (data, (SV *)av); |
|
|
2165 | |
|
|
2166 | /* better take a full copy of the arguments */ |
|
|
2167 | while (items--) |
|
|
2168 | av_store (av, items, newSVsv (ST (items))); |
|
|
2169 | |
|
|
2170 | api_ready (aTHX_ coro); |
|
|
2171 | SvREFCNT_dec (coro); |
|
|
2172 | } |
|
|
2173 | |
|
|
2174 | XSRETURN_EMPTY; |
|
|
2175 | } |
|
|
2176 | |
|
|
2177 | static int |
|
|
2178 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2179 | { |
|
|
2180 | SV *data = (SV *)frame->data; |
|
|
2181 | |
|
|
2182 | if (CORO_THROW) |
|
|
2183 | return 0; |
|
|
2184 | |
|
|
2185 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2186 | return 1; |
|
|
2187 | |
|
|
2188 | /* now push all results on the stack */ |
|
|
2189 | { |
|
|
2190 | dSP; |
|
|
2191 | AV *av = (AV *)SvRV (data); |
|
|
2192 | int i; |
|
|
2193 | |
|
|
2194 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2195 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2196 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2197 | |
|
|
2198 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2199 | AvFILLp (av) = -1; |
|
|
2200 | av_undef (av); |
|
|
2201 | |
|
|
2202 | PUTBACK; |
|
|
2203 | } |
|
|
2204 | |
|
|
2205 | return 0; |
|
|
2206 | } |
|
|
2207 | |
|
|
2208 | static void |
|
|
2209 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2210 | { |
|
|
2211 | SV *cb; |
|
|
2212 | |
|
|
2213 | if (items) |
|
|
2214 | cb = arg [0]; |
|
|
2215 | else |
|
|
2216 | { |
|
|
2217 | struct coro *coro = SvSTATE_current; |
|
|
2218 | |
|
|
2219 | if (!coro->rouse_cb) |
|
|
2220 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2221 | |
|
|
2222 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2223 | coro->rouse_cb = 0; |
|
|
2224 | } |
|
|
2225 | |
|
|
2226 | if (!SvROK (cb) |
|
|
2227 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2228 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2229 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2230 | |
|
|
2231 | { |
|
|
2232 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2233 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2234 | |
|
|
2235 | frame->data = (void *)data; |
|
|
2236 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2237 | frame->check = slf_check_rouse_wait; |
|
|
2238 | } |
|
|
2239 | } |
|
|
2240 | |
|
|
2241 | static SV * |
|
|
2242 | coro_new_rouse_cb (pTHX) |
|
|
2243 | { |
|
|
2244 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2245 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2246 | SV *data = newRV_inc ((SV *)hv); |
|
|
2247 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2248 | |
|
|
2249 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2250 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2251 | |
|
|
2252 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2253 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2254 | |
|
|
2255 | return cb; |
|
|
2256 | } |
|
|
2257 | |
|
|
2258 | /*****************************************************************************/ |
|
|
2259 | /* schedule-like-function opcode (SLF) */ |
|
|
2260 | |
|
|
2261 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2262 | static const CV *slf_cv; |
|
|
2263 | static SV **slf_argv; |
|
|
2264 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2265 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2266 | |
|
|
2267 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2268 | /* recreate the stack frame as perl will on following calls */ |
|
|
2269 | /* since entersub cleared the stack */ |
|
|
2270 | static OP * |
|
|
2271 | pp_restore (pTHX) |
|
|
2272 | { |
|
|
2273 | int i; |
|
|
2274 | SV **SP = PL_stack_base + slf_ax; |
|
|
2275 | |
|
|
2276 | PUSHMARK (SP); |
|
|
2277 | |
|
|
2278 | EXTEND (SP, slf_argc + 1); |
|
|
2279 | |
|
|
2280 | for (i = 0; i < slf_argc; ++i) |
|
|
2281 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2282 | |
|
|
2283 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2284 | |
|
|
2285 | RETURNOP (slf_restore.op_first); |
|
|
2286 | } |
|
|
2287 | |
|
|
2288 | static void |
|
|
2289 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2290 | { |
|
|
2291 | SV **arg = (SV **)slf_frame.data; |
|
|
2292 | |
|
|
2293 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2294 | } |
|
|
2295 | |
|
|
2296 | static void |
|
|
2297 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2298 | { |
|
|
2299 | if (items != 2) |
|
|
2300 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2301 | |
|
|
2302 | frame->prepare = slf_prepare_transfer; |
|
|
2303 | frame->check = slf_check_nop; |
|
|
2304 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2305 | } |
|
|
2306 | |
|
|
2307 | static void |
|
|
2308 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2309 | { |
|
|
2310 | frame->prepare = prepare_schedule; |
|
|
2311 | frame->check = slf_check_nop; |
|
|
2312 | } |
|
|
2313 | |
|
|
2314 | static void |
|
|
2315 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2316 | { |
|
|
2317 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2318 | |
|
|
2319 | SvREFCNT_inc_NN (next->hv); |
|
|
2320 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2321 | } |
|
|
2322 | |
|
|
2323 | static void |
|
|
2324 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2325 | { |
|
|
2326 | if (!items) |
|
|
2327 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2328 | |
|
|
2329 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2330 | frame->prepare = slf_prepare_schedule_to; |
|
|
2331 | frame->check = slf_check_nop; |
|
|
2332 | } |
|
|
2333 | |
|
|
2334 | static void |
|
|
2335 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2336 | { |
|
|
2337 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2338 | |
|
|
2339 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2340 | } |
|
|
2341 | |
|
|
2342 | static void |
|
|
2343 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2344 | { |
|
|
2345 | frame->prepare = prepare_cede; |
|
|
2346 | frame->check = slf_check_nop; |
|
|
2347 | } |
|
|
2348 | |
|
|
2349 | static void |
|
|
2350 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2351 | { |
|
|
2352 | frame->prepare = prepare_cede_notself; |
|
|
2353 | frame->check = slf_check_nop; |
|
|
2354 | } |
|
|
2355 | |
|
|
2356 | /* |
|
|
2357 | * these not obviously related functions are all rolled into one |
|
|
2358 | * function to increase chances that they all will call transfer with the same |
|
|
2359 | * stack offset |
|
|
2360 | * SLF stands for "schedule-like-function". |
|
|
2361 | */ |
|
|
2362 | static OP * |
|
|
2363 | pp_slf (pTHX) |
|
|
2364 | { |
|
|
2365 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2366 | |
|
|
2367 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2368 | /* the latter happens when a new coro has been started */ |
|
|
2369 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2370 | if (expect_true (!slf_frame.prepare)) |
|
|
2371 | { |
|
|
2372 | /* first iteration */ |
|
|
2373 | dSP; |
|
|
2374 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2375 | int items = SP - arg; /* args without function object */ |
|
|
2376 | SV *gv = *sp; |
|
|
2377 | |
|
|
2378 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2379 | /* for us, divert to the real entersub */ |
|
|
2380 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2381 | || !GvCV (gv) |
|
|
2382 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2383 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2384 | |
|
|
2385 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2386 | { |
|
|
2387 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2388 | AV *av = GvAV (PL_defgv); |
|
|
2389 | arg = AvARRAY (av); |
|
|
2390 | items = AvFILLp (av) + 1; |
|
|
2391 | } |
|
|
2392 | |
|
|
2393 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2394 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2395 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2396 | |
|
|
2397 | /* pop args */ |
|
|
2398 | SP = PL_stack_base + POPMARK; |
|
|
2399 | |
|
|
2400 | PUTBACK; |
|
|
2401 | } |
|
|
2402 | |
|
|
2403 | /* now that we have a slf_frame, interpret it! */ |
|
|
2404 | /* we use a callback system not to make the code needlessly */ |
|
|
2405 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2406 | |
|
|
2407 | do |
|
|
2408 | { |
|
|
2409 | struct coro_transfer_args ta; |
|
|
2410 | |
|
|
2411 | slf_frame.prepare (aTHX_ &ta); |
|
|
2412 | TRANSFER (ta, 0); |
|
|
2413 | |
|
|
2414 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2415 | } |
|
|
2416 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2417 | |
|
|
2418 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2419 | |
|
|
2420 | /* exception handling */ |
|
|
2421 | if (expect_false (CORO_THROW)) |
|
|
2422 | { |
|
|
2423 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2424 | |
|
|
2425 | CORO_THROW = 0; |
|
|
2426 | sv_setsv (ERRSV, exception); |
|
|
2427 | croak (0); |
|
|
2428 | } |
|
|
2429 | |
|
|
2430 | /* return value handling - mostly like entersub */ |
|
|
2431 | /* make sure we put something on the stack in scalar context */ |
|
|
2432 | if (GIMME_V == G_SCALAR) |
|
|
2433 | { |
|
|
2434 | dSP; |
|
|
2435 | SV **bot = PL_stack_base + checkmark; |
|
|
2436 | |
|
|
2437 | if (sp == bot) /* too few, push undef */ |
|
|
2438 | bot [1] = &PL_sv_undef; |
|
|
2439 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2440 | bot [1] = *sp; |
|
|
2441 | |
|
|
2442 | SP = bot + 1; |
|
|
2443 | |
|
|
2444 | PUTBACK; |
|
|
2445 | } |
|
|
2446 | |
|
|
2447 | return NORMAL; |
|
|
2448 | } |
|
|
2449 | |
|
|
2450 | static void |
|
|
2451 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2452 | { |
|
|
2453 | int i; |
|
|
2454 | SV **arg = PL_stack_base + ax; |
|
|
2455 | int items = PL_stack_sp - arg + 1; |
|
|
2456 | |
|
|
2457 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2458 | |
|
|
2459 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2460 | && PL_op->op_ppaddr != pp_slf) |
|
|
2461 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2462 | |
|
|
2463 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2464 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2465 | slf_cv = cv; |
|
|
2466 | |
|
|
2467 | /* we patch the op, and then re-run the whole call */ |
|
|
2468 | /* we have to put the same argument on the stack for this to work */ |
|
|
2469 | /* and this will be done by pp_restore */ |
|
|
2470 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2471 | slf_restore.op_type = OP_CUSTOM; |
|
|
2472 | slf_restore.op_ppaddr = pp_restore; |
|
|
2473 | slf_restore.op_first = PL_op; |
|
|
2474 | |
|
|
2475 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2476 | |
|
|
2477 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2478 | { |
|
|
2479 | if (items > slf_arga) |
|
|
2480 | { |
|
|
2481 | slf_arga = items; |
|
|
2482 | Safefree (slf_argv); |
|
|
2483 | New (0, slf_argv, slf_arga, SV *); |
|
|
2484 | } |
|
|
2485 | |
|
|
2486 | slf_argc = items; |
|
|
2487 | |
|
|
2488 | for (i = 0; i < items; ++i) |
|
|
2489 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2490 | } |
|
|
2491 | else |
|
|
2492 | slf_argc = 0; |
|
|
2493 | |
|
|
2494 | PL_op->op_ppaddr = pp_slf; |
|
|
2495 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2496 | |
|
|
2497 | PL_op = (OP *)&slf_restore; |
|
|
2498 | } |
|
|
2499 | |
|
|
2500 | /*****************************************************************************/ |
|
|
2501 | /* dynamic wind */ |
|
|
2502 | |
|
|
2503 | static void |
|
|
2504 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2505 | { |
|
|
2506 | dSP; |
|
|
2507 | |
|
|
2508 | PUSHSTACK; |
|
|
2509 | |
|
|
2510 | PUSHMARK (SP); |
|
|
2511 | PUTBACK; |
|
|
2512 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2513 | SPAGAIN; |
|
|
2514 | |
|
|
2515 | POPSTACK; |
|
|
2516 | } |
|
|
2517 | |
|
|
2518 | static SV * |
|
|
2519 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2520 | { |
|
|
2521 | AV *av = *avp; |
|
|
2522 | SV *res = av_pop (av); |
|
|
2523 | |
|
|
2524 | if (AvFILLp (av) < 0) |
|
|
2525 | { |
|
|
2526 | *avp = 0; |
|
|
2527 | SvREFCNT_dec (av); |
|
|
2528 | } |
|
|
2529 | |
|
|
2530 | return res; |
|
|
2531 | } |
|
|
2532 | |
|
|
2533 | static void |
|
|
2534 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2535 | { |
|
|
2536 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2537 | SvREFCNT_dec (cb); |
|
|
2538 | } |
|
|
2539 | |
|
|
2540 | static void |
|
|
2541 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2542 | { |
|
|
2543 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2544 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2545 | } |
|
|
2546 | |
|
|
2547 | /*****************************************************************************/ |
|
|
2548 | /* PerlIO::cede */ |
|
|
2549 | |
|
|
2550 | typedef struct |
|
|
2551 | { |
|
|
2552 | PerlIOBuf base; |
|
|
2553 | NV next, every; |
|
|
2554 | } PerlIOCede; |
|
|
2555 | |
|
|
2556 | static IV |
|
|
2557 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2558 | { |
|
|
2559 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2560 | |
|
|
2561 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2562 | self->next = nvtime () + self->every; |
|
|
2563 | |
|
|
2564 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2565 | } |
|
|
2566 | |
|
|
2567 | static SV * |
|
|
2568 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2569 | { |
|
|
2570 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2571 | |
|
|
2572 | return newSVnv (self->every); |
|
|
2573 | } |
|
|
2574 | |
|
|
2575 | static IV |
|
|
2576 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2577 | { |
|
|
2578 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2579 | double now = nvtime (); |
|
|
2580 | |
|
|
2581 | if (now >= self->next) |
|
|
2582 | { |
|
|
2583 | api_cede (aTHX); |
|
|
2584 | self->next = now + self->every; |
|
|
2585 | } |
|
|
2586 | |
|
|
2587 | return PerlIOBuf_flush (aTHX_ f); |
|
|
2588 | } |
|
|
2589 | |
|
|
2590 | static PerlIO_funcs PerlIO_cede = |
|
|
2591 | { |
|
|
2592 | sizeof(PerlIO_funcs), |
|
|
2593 | "cede", |
|
|
2594 | sizeof(PerlIOCede), |
|
|
2595 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
2596 | PerlIOCede_pushed, |
|
|
2597 | PerlIOBuf_popped, |
|
|
2598 | PerlIOBuf_open, |
|
|
2599 | PerlIOBase_binmode, |
|
|
2600 | PerlIOCede_getarg, |
|
|
2601 | PerlIOBase_fileno, |
|
|
2602 | PerlIOBuf_dup, |
|
|
2603 | PerlIOBuf_read, |
|
|
2604 | PerlIOBuf_unread, |
|
|
2605 | PerlIOBuf_write, |
|
|
2606 | PerlIOBuf_seek, |
|
|
2607 | PerlIOBuf_tell, |
|
|
2608 | PerlIOBuf_close, |
|
|
2609 | PerlIOCede_flush, |
|
|
2610 | PerlIOBuf_fill, |
|
|
2611 | PerlIOBase_eof, |
|
|
2612 | PerlIOBase_error, |
|
|
2613 | PerlIOBase_clearerr, |
|
|
2614 | PerlIOBase_setlinebuf, |
|
|
2615 | PerlIOBuf_get_base, |
|
|
2616 | PerlIOBuf_bufsiz, |
|
|
2617 | PerlIOBuf_get_ptr, |
|
|
2618 | PerlIOBuf_get_cnt, |
|
|
2619 | PerlIOBuf_set_ptrcnt, |
|
|
2620 | }; |
|
|
2621 | |
|
|
2622 | /*****************************************************************************/ |
|
|
2623 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2624 | |
|
|
2625 | static SV * |
|
|
2626 | coro_waitarray_new (pTHX_ int count) |
|
|
2627 | { |
|
|
2628 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2629 | AV *av = newAV (); |
|
|
2630 | SV **ary; |
|
|
2631 | |
|
|
2632 | /* unfortunately, building manually saves memory */ |
|
|
2633 | Newx (ary, 2, SV *); |
|
|
2634 | AvALLOC (av) = ary; |
|
|
2635 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2636 | AvARRAY (av) = ary; |
|
|
2637 | #else |
|
|
2638 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2639 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2640 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2641 | #endif |
|
|
2642 | AvMAX (av) = 1; |
|
|
2643 | AvFILLp (av) = 0; |
|
|
2644 | ary [0] = newSViv (count); |
|
|
2645 | |
|
|
2646 | return newRV_noinc ((SV *)av); |
|
|
2647 | } |
|
|
2648 | |
|
|
2649 | /* semaphore */ |
|
|
2650 | |
|
|
2651 | static void |
|
|
2652 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2653 | { |
|
|
2654 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2655 | IV count = SvIVX (count_sv); |
|
|
2656 | |
|
|
2657 | count += adjust; |
|
|
2658 | SvIVX (count_sv) = count; |
|
|
2659 | |
|
|
2660 | /* now wake up as many waiters as are expected to lock */ |
|
|
2661 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2662 | { |
|
|
2663 | SV *cb; |
|
|
2664 | |
|
|
2665 | /* swap first two elements so we can shift a waiter */ |
|
|
2666 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2667 | AvARRAY (av)[1] = count_sv; |
|
|
2668 | cb = av_shift (av); |
|
|
2669 | |
|
|
2670 | if (SvOBJECT (cb)) |
|
|
2671 | { |
|
|
2672 | api_ready (aTHX_ cb); |
|
|
2673 | --count; |
|
|
2674 | } |
|
|
2675 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2676 | { |
|
|
2677 | dSP; |
|
|
2678 | PUSHMARK (SP); |
|
|
2679 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2680 | PUTBACK; |
|
|
2681 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2682 | } |
|
|
2683 | |
|
|
2684 | SvREFCNT_dec (cb); |
|
|
2685 | } |
|
|
2686 | } |
|
|
2687 | |
|
|
2688 | static void |
|
|
2689 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2690 | { |
|
|
2691 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2692 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2693 | } |
|
|
2694 | |
|
|
2695 | static int |
|
|
2696 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2697 | { |
|
|
2698 | AV *av = (AV *)frame->data; |
|
|
2699 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2700 | |
|
|
2701 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2702 | if (CORO_THROW) |
|
|
2703 | return 0; |
|
|
2704 | else if (SvIVX (count_sv) > 0) |
|
|
2705 | { |
|
|
2706 | SvSTATE_current->on_destroy = 0; |
|
|
2707 | |
|
|
2708 | if (acquire) |
|
|
2709 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2710 | else |
|
|
2711 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2712 | |
|
|
2713 | return 0; |
|
|
2714 | } |
|
|
2715 | else |
|
|
2716 | { |
|
|
2717 | int i; |
|
|
2718 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2719 | /* waiters list and only add us if we aren't in there already */ |
|
|
2720 | /* this avoids some degenerate memory usage cases */ |
|
|
2721 | |
|
|
2722 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2723 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2724 | return 1; |
|
|
2725 | |
|
|
2726 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2727 | return 1; |
|
|
2728 | } |
|
|
2729 | } |
|
|
2730 | |
|
|
2731 | static int |
|
|
2732 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2733 | { |
|
|
2734 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2735 | } |
|
|
2736 | |
|
|
2737 | static int |
|
|
2738 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2739 | { |
|
|
2740 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2741 | } |
|
|
2742 | |
|
|
2743 | static void |
|
|
2744 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2745 | { |
|
|
2746 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2747 | |
|
|
2748 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2749 | { |
|
|
2750 | frame->data = (void *)av; |
|
|
2751 | frame->prepare = prepare_nop; |
|
|
2752 | } |
|
|
2753 | else |
|
|
2754 | { |
|
|
2755 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2756 | |
|
|
2757 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2758 | frame->prepare = prepare_schedule; |
|
|
2759 | |
|
|
2760 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2761 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2762 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2763 | } |
|
|
2764 | } |
|
|
2765 | |
|
|
2766 | static void |
|
|
2767 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2768 | { |
|
|
2769 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2770 | frame->check = slf_check_semaphore_down; |
|
|
2771 | } |
|
|
2772 | |
|
|
2773 | static void |
|
|
2774 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2775 | { |
|
|
2776 | if (items >= 2) |
|
|
2777 | { |
|
|
2778 | /* callback form */ |
|
|
2779 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2780 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
2781 | |
|
|
2782 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2783 | |
|
|
2784 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2785 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2786 | |
|
|
2787 | frame->prepare = prepare_nop; |
|
|
2788 | frame->check = slf_check_nop; |
|
|
2789 | } |
|
|
2790 | else |
|
|
2791 | { |
|
|
2792 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2793 | frame->check = slf_check_semaphore_wait; |
|
|
2794 | } |
|
|
2795 | } |
|
|
2796 | |
|
|
2797 | /* signal */ |
|
|
2798 | |
|
|
2799 | static void |
|
|
2800 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2801 | { |
|
|
2802 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2803 | |
|
|
2804 | /* now signal count waiters */ |
|
|
2805 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2806 | { |
|
|
2807 | SV *cb; |
|
|
2808 | |
|
|
2809 | /* swap first two elements so we can shift a waiter */ |
|
|
2810 | cb = AvARRAY (av)[0]; |
|
|
2811 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2812 | AvARRAY (av)[1] = cb; |
|
|
2813 | |
|
|
2814 | cb = av_shift (av); |
|
|
2815 | |
|
|
2816 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
2817 | { |
|
|
2818 | dSP; |
|
|
2819 | PUSHMARK (SP); |
|
|
2820 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2821 | PUTBACK; |
|
|
2822 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2823 | } |
|
|
2824 | else |
|
|
2825 | { |
|
|
2826 | api_ready (aTHX_ cb); |
|
|
2827 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2828 | } |
|
|
2829 | |
|
|
2830 | SvREFCNT_dec (cb); |
|
|
2831 | |
|
|
2832 | --count; |
|
|
2833 | } |
|
|
2834 | } |
|
|
2835 | |
|
|
2836 | static int |
|
|
2837 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2838 | { |
|
|
2839 | /* if we are about to throw, also stop waiting */ |
|
|
2840 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2841 | } |
|
|
2842 | |
|
|
2843 | static void |
|
|
2844 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2845 | { |
|
|
2846 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2847 | |
|
|
2848 | if (items >= 2) |
|
|
2849 | { |
|
|
2850 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
2851 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2852 | |
|
|
2853 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2854 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
2855 | |
|
|
2856 | frame->prepare = prepare_nop; |
|
|
2857 | frame->check = slf_check_nop; |
|
|
2858 | } |
|
|
2859 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
2860 | { |
|
|
2861 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2862 | frame->prepare = prepare_nop; |
|
|
2863 | frame->check = slf_check_nop; |
|
|
2864 | } |
|
|
2865 | else |
|
|
2866 | { |
|
|
2867 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
2868 | |
|
|
2869 | av_push (av, waiter); |
|
|
2870 | |
|
|
2871 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2872 | frame->prepare = prepare_schedule; |
|
|
2873 | frame->check = slf_check_signal_wait; |
|
|
2874 | } |
|
|
2875 | } |
|
|
2876 | |
|
|
2877 | /*****************************************************************************/ |
|
|
2878 | /* Coro::AIO */ |
|
|
2879 | |
|
|
2880 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2881 | |
|
|
2882 | /* helper storage struct */ |
|
|
2883 | struct io_state |
|
|
2884 | { |
|
|
2885 | int errorno; |
|
|
2886 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2887 | int laststatval; |
|
|
2888 | Stat_t statcache; |
|
|
2889 | }; |
|
|
2890 | |
|
|
2891 | static void |
|
|
2892 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2893 | { |
|
|
2894 | dXSARGS; |
|
|
2895 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
2896 | SV *coro = av_pop (state); |
|
|
2897 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2898 | |
|
|
2899 | av_extend (state, items - 1); |
|
|
2900 | |
|
|
2901 | sv_upgrade (data_sv, SVt_PV); |
|
|
2902 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2903 | SvPOK_only (data_sv); |
|
|
2904 | |
|
|
2905 | { |
|
|
2906 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2907 | |
|
|
2908 | data->errorno = errno; |
|
|
2909 | data->laststype = PL_laststype; |
|
|
2910 | data->laststatval = PL_laststatval; |
|
|
2911 | data->statcache = PL_statcache; |
|
|
2912 | } |
|
|
2913 | |
|
|
2914 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2915 | { |
|
|
2916 | int i; |
|
|
2917 | |
|
|
2918 | for (i = 0; i < items; ++i) |
|
|
2919 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2920 | } |
|
|
2921 | |
|
|
2922 | av_push (state, data_sv); |
|
|
2923 | |
|
|
2924 | api_ready (aTHX_ coro); |
|
|
2925 | SvREFCNT_dec (coro); |
|
|
2926 | SvREFCNT_dec ((AV *)state); |
|
|
2927 | } |
|
|
2928 | |
|
|
2929 | static int |
|
|
2930 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2931 | { |
|
|
2932 | AV *state = (AV *)frame->data; |
|
|
2933 | |
|
|
2934 | /* if we are about to throw, return early */ |
|
|
2935 | /* this does not cancel the aio request, but at least */ |
|
|
2936 | /* it quickly returns */ |
|
|
2937 | if (CORO_THROW) |
|
|
2938 | return 0; |
|
|
2939 | |
|
|
2940 | /* one element that is an RV? repeat! */ |
|
|
2941 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2942 | return 1; |
|
|
2943 | |
|
|
2944 | /* restore status */ |
|
|
2945 | { |
|
|
2946 | SV *data_sv = av_pop (state); |
|
|
2947 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2948 | |
|
|
2949 | errno = data->errorno; |
|
|
2950 | PL_laststype = data->laststype; |
|
|
2951 | PL_laststatval = data->laststatval; |
|
|
2952 | PL_statcache = data->statcache; |
|
|
2953 | |
|
|
2954 | SvREFCNT_dec (data_sv); |
|
|
2955 | } |
|
|
2956 | |
|
|
2957 | /* push result values */ |
|
|
2958 | { |
|
|
2959 | dSP; |
|
|
2960 | int i; |
|
|
2961 | |
|
|
2962 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2963 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2964 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2965 | |
|
|
2966 | PUTBACK; |
|
|
2967 | } |
|
|
2968 | |
|
|
2969 | return 0; |
|
|
2970 | } |
|
|
2971 | |
|
|
2972 | static void |
|
|
2973 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2974 | { |
|
|
2975 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2976 | SV *coro_hv = SvRV (coro_current); |
|
|
2977 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2978 | |
|
|
2979 | /* put our coroutine id on the state arg */ |
|
|
2980 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2981 | |
|
|
2982 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2983 | if (coro->prio) |
|
|
2984 | { |
|
|
2985 | dSP; |
|
|
2986 | |
|
|
2987 | static SV *prio_cv; |
|
|
2988 | static SV *prio_sv; |
|
|
2989 | |
|
|
2990 | if (expect_false (!prio_cv)) |
|
|
2991 | { |
|
|
2992 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2993 | prio_sv = newSViv (0); |
|
|
2994 | } |
|
|
2995 | |
|
|
2996 | PUSHMARK (SP); |
|
|
2997 | sv_setiv (prio_sv, coro->prio); |
|
|
2998 | XPUSHs (prio_sv); |
|
|
2999 | |
|
|
3000 | PUTBACK; |
|
|
3001 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3002 | } |
|
|
3003 | |
|
|
3004 | /* now call the original request */ |
|
|
3005 | { |
|
|
3006 | dSP; |
|
|
3007 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3008 | int i; |
|
|
3009 | |
|
|
3010 | PUSHMARK (SP); |
|
|
3011 | |
|
|
3012 | /* first push all args to the stack */ |
|
|
3013 | EXTEND (SP, items + 1); |
|
|
3014 | |
|
|
3015 | for (i = 0; i < items; ++i) |
|
|
3016 | PUSHs (arg [i]); |
|
|
3017 | |
|
|
3018 | /* now push the callback closure */ |
|
|
3019 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3020 | |
|
|
3021 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3022 | PUTBACK; |
|
|
3023 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3024 | } |
|
|
3025 | |
|
|
3026 | /* now that the request is going, we loop till we have a result */ |
|
|
3027 | frame->data = (void *)state; |
|
|
3028 | frame->prepare = prepare_schedule; |
|
|
3029 | frame->check = slf_check_aio_req; |
|
|
3030 | } |
|
|
3031 | |
|
|
3032 | static void |
|
|
3033 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3034 | { |
|
|
3035 | dXSARGS; |
|
|
3036 | |
|
|
3037 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3038 | |
|
|
3039 | XSRETURN_EMPTY; |
|
|
3040 | } |
|
|
3041 | |
|
|
3042 | /*****************************************************************************/ |
|
|
3043 | |
|
|
3044 | #if CORO_CLONE |
|
|
3045 | # include "clone.c" |
|
|
3046 | #endif |
|
|
3047 | |
|
|
3048 | /*****************************************************************************/ |
|
|
3049 | |
|
|
3050 | static SV * |
|
|
3051 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
3052 | { |
|
|
3053 | SV *coro_sv; |
|
|
3054 | struct coro *coro; |
|
|
3055 | MAGIC *mg; |
|
|
3056 | HV *hv; |
|
|
3057 | SV *cb; |
|
|
3058 | int i; |
|
|
3059 | |
|
|
3060 | if (argc > 0) |
|
|
3061 | { |
|
|
3062 | cb = s_get_cv_croak (argv [0]); |
|
|
3063 | |
|
|
3064 | if (!is_coro) |
|
|
3065 | { |
|
|
3066 | if (CvISXSUB (cb)) |
|
|
3067 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3068 | |
|
|
3069 | if (!CvROOT (cb)) |
|
|
3070 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3071 | } |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | Newz (0, coro, 1, struct coro); |
|
|
3075 | coro->args = newAV (); |
|
|
3076 | coro->flags = CF_NEW; |
|
|
3077 | |
|
|
3078 | if (coro_first) coro_first->prev = coro; |
|
|
3079 | coro->next = coro_first; |
|
|
3080 | coro_first = coro; |
|
|
3081 | |
|
|
3082 | coro->hv = hv = newHV (); |
|
|
3083 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3084 | mg->mg_flags |= MGf_DUP; |
|
|
3085 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3086 | |
|
|
3087 | if (argc > 0) |
|
|
3088 | { |
|
|
3089 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3090 | |
|
|
3091 | if (is_coro) |
|
|
3092 | { |
|
|
3093 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3094 | cb = (SV *)cv_coro_run; |
|
|
3095 | } |
|
|
3096 | |
|
|
3097 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3098 | |
|
|
3099 | for (i = 1; i < argc; i++) |
|
|
3100 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3101 | } |
|
|
3102 | |
|
|
3103 | return coro_sv; |
1370 | } |
3104 | } |
1371 | |
3105 | |
1372 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3106 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1373 | |
3107 | |
1374 | PROTOTYPES: DISABLE |
3108 | PROTOTYPES: DISABLE |
1375 | |
3109 | |
1376 | BOOT: |
3110 | BOOT: |
1377 | { |
3111 | { |
1378 | #ifdef USE_ITHREADS |
3112 | #ifdef USE_ITHREADS |
1379 | MUTEX_INIT (&coro_mutex); |
3113 | # if CORO_PTHREAD |
|
|
3114 | coro_thx = PERL_GET_CONTEXT; |
|
|
3115 | # endif |
1380 | #endif |
3116 | #endif |
1381 | BOOT_PAGESIZE; |
3117 | BOOT_PAGESIZE; |
1382 | |
3118 | |
|
|
3119 | cctx_current = cctx_new_empty (); |
|
|
3120 | |
1383 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3121 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1384 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3122 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
3123 | |
|
|
3124 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
3125 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
3126 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
3127 | |
|
|
3128 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
3129 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
3130 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1385 | |
3131 | |
1386 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
3132 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1387 | |
3133 | |
1388 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
3134 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1389 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
3135 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
… | |
… | |
1394 | main_top_env = PL_top_env; |
3140 | main_top_env = PL_top_env; |
1395 | |
3141 | |
1396 | while (main_top_env->je_prev) |
3142 | while (main_top_env->je_prev) |
1397 | main_top_env = main_top_env->je_prev; |
3143 | main_top_env = main_top_env->je_prev; |
1398 | |
3144 | |
|
|
3145 | { |
|
|
3146 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
3147 | |
|
|
3148 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
3149 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
3150 | |
|
|
3151 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3152 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
3153 | } |
|
|
3154 | |
1399 | coroapi.ver = CORO_API_VERSION; |
3155 | coroapi.ver = CORO_API_VERSION; |
|
|
3156 | coroapi.rev = CORO_API_REVISION; |
|
|
3157 | |
1400 | coroapi.transfer = api_transfer; |
3158 | coroapi.transfer = api_transfer; |
1401 | |
3159 | |
|
|
3160 | coroapi.sv_state = SvSTATE_; |
|
|
3161 | coroapi.execute_slf = api_execute_slf; |
|
|
3162 | coroapi.prepare_nop = prepare_nop; |
|
|
3163 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3164 | coroapi.prepare_cede = prepare_cede; |
|
|
3165 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3166 | |
|
|
3167 | time_init (aTHX); |
|
|
3168 | |
1402 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3169 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
1403 | } |
3170 | } |
1404 | |
3171 | |
1405 | SV * |
3172 | SV * |
1406 | new (char *klass, ...) |
3173 | new (SV *klass, ...) |
|
|
3174 | ALIAS: |
|
|
3175 | Coro::new = 1 |
1407 | CODE: |
3176 | CODE: |
1408 | { |
3177 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
1409 | struct coro *coro; |
3178 | OUTPUT: |
1410 | HV *hv; |
|
|
1411 | int i; |
|
|
1412 | |
|
|
1413 | Newz (0, coro, 1, struct coro); |
|
|
1414 | coro->args = newAV (); |
|
|
1415 | coro->flags = CF_NEW; |
|
|
1416 | |
|
|
1417 | if (coro_first) coro_first->prev = coro; |
|
|
1418 | coro->next = coro_first; |
|
|
1419 | coro_first = coro; |
|
|
1420 | |
|
|
1421 | coro->hv = hv = newHV (); |
|
|
1422 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1423 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1424 | |
|
|
1425 | for (i = 1; i < items; i++) |
|
|
1426 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1427 | } |
|
|
1428 | OUTPUT: |
|
|
1429 | RETVAL |
3179 | RETVAL |
1430 | |
3180 | |
1431 | # these not obviously related functions are all rolled into the same xs |
|
|
1432 | # function to increase chances that they all will call transfer with the same |
|
|
1433 | # stack offset |
|
|
1434 | void |
3181 | void |
1435 | _set_stacklevel (...) |
3182 | transfer (...) |
1436 | ALIAS: |
3183 | PROTOTYPE: $$ |
1437 | Coro::State::transfer = 1 |
3184 | CODE: |
1438 | Coro::schedule = 2 |
3185 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1439 | Coro::cede = 3 |
|
|
1440 | Coro::cede_notself = 4 |
|
|
1441 | CODE: |
|
|
1442 | { |
|
|
1443 | struct transfer_args ta; |
|
|
1444 | |
|
|
1445 | switch (ix) |
|
|
1446 | { |
|
|
1447 | case 0: |
|
|
1448 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1449 | ta.next = 0; |
|
|
1450 | break; |
|
|
1451 | |
|
|
1452 | case 1: |
|
|
1453 | if (items != 2) |
|
|
1454 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1455 | |
|
|
1456 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1457 | break; |
|
|
1458 | |
|
|
1459 | case 2: |
|
|
1460 | prepare_schedule (aTHX_ &ta); |
|
|
1461 | break; |
|
|
1462 | |
|
|
1463 | case 3: |
|
|
1464 | prepare_cede (aTHX_ &ta); |
|
|
1465 | break; |
|
|
1466 | |
|
|
1467 | case 4: |
|
|
1468 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1469 | XSRETURN_EMPTY; |
|
|
1470 | |
|
|
1471 | break; |
|
|
1472 | } |
|
|
1473 | |
|
|
1474 | BARRIER; |
|
|
1475 | TRANSFER (ta); |
|
|
1476 | |
|
|
1477 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1478 | XSRETURN_YES; |
|
|
1479 | } |
|
|
1480 | |
3186 | |
1481 | bool |
3187 | bool |
1482 | _destroy (SV *coro_sv) |
3188 | _destroy (SV *coro_sv) |
1483 | CODE: |
3189 | CODE: |
1484 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
3190 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1485 | OUTPUT: |
3191 | OUTPUT: |
1486 | RETVAL |
3192 | RETVAL |
1487 | |
3193 | |
1488 | void |
3194 | void |
1489 | _exit (code) |
3195 | _exit (int code) |
1490 | int code |
|
|
1491 | PROTOTYPE: $ |
3196 | PROTOTYPE: $ |
1492 | CODE: |
3197 | CODE: |
1493 | _exit (code); |
3198 | _exit (code); |
1494 | |
3199 | |
|
|
3200 | SV * |
|
|
3201 | clone (Coro::State coro) |
|
|
3202 | CODE: |
|
|
3203 | { |
|
|
3204 | #if CORO_CLONE |
|
|
3205 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3206 | MAGIC *mg; |
|
|
3207 | /* TODO: too much duplication */ |
|
|
3208 | ncoro->hv = newHV (); |
|
|
3209 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3210 | mg->mg_flags |= MGf_DUP; |
|
|
3211 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3212 | #else |
|
|
3213 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3214 | #endif |
|
|
3215 | } |
|
|
3216 | OUTPUT: |
|
|
3217 | RETVAL |
|
|
3218 | |
1495 | int |
3219 | int |
1496 | cctx_stacksize (int new_stacksize = 0) |
3220 | cctx_stacksize (int new_stacksize = 0) |
|
|
3221 | PROTOTYPE: ;$ |
1497 | CODE: |
3222 | CODE: |
1498 | RETVAL = coro_stacksize; |
3223 | RETVAL = cctx_stacksize; |
1499 | if (new_stacksize) |
3224 | if (new_stacksize) |
|
|
3225 | { |
1500 | coro_stacksize = new_stacksize; |
3226 | cctx_stacksize = new_stacksize; |
|
|
3227 | ++cctx_gen; |
|
|
3228 | } |
1501 | OUTPUT: |
3229 | OUTPUT: |
1502 | RETVAL |
3230 | RETVAL |
1503 | |
3231 | |
1504 | int |
3232 | int |
|
|
3233 | cctx_max_idle (int max_idle = 0) |
|
|
3234 | PROTOTYPE: ;$ |
|
|
3235 | CODE: |
|
|
3236 | RETVAL = cctx_max_idle; |
|
|
3237 | if (max_idle > 1) |
|
|
3238 | cctx_max_idle = max_idle; |
|
|
3239 | OUTPUT: |
|
|
3240 | RETVAL |
|
|
3241 | |
|
|
3242 | int |
1505 | cctx_count () |
3243 | cctx_count () |
|
|
3244 | PROTOTYPE: |
1506 | CODE: |
3245 | CODE: |
1507 | RETVAL = cctx_count; |
3246 | RETVAL = cctx_count; |
1508 | OUTPUT: |
3247 | OUTPUT: |
1509 | RETVAL |
3248 | RETVAL |
1510 | |
3249 | |
1511 | int |
3250 | int |
1512 | cctx_idle () |
3251 | cctx_idle () |
|
|
3252 | PROTOTYPE: |
1513 | CODE: |
3253 | CODE: |
1514 | RETVAL = cctx_idle; |
3254 | RETVAL = cctx_idle; |
1515 | OUTPUT: |
3255 | OUTPUT: |
1516 | RETVAL |
3256 | RETVAL |
1517 | |
3257 | |
1518 | void |
3258 | void |
1519 | list () |
3259 | list () |
|
|
3260 | PROTOTYPE: |
1520 | PPCODE: |
3261 | PPCODE: |
1521 | { |
3262 | { |
1522 | struct coro *coro; |
3263 | struct coro *coro; |
1523 | for (coro = coro_first; coro; coro = coro->next) |
3264 | for (coro = coro_first; coro; coro = coro->next) |
1524 | if (coro->hv) |
3265 | if (coro->hv) |
… | |
… | |
1529 | call (Coro::State coro, SV *coderef) |
3270 | call (Coro::State coro, SV *coderef) |
1530 | ALIAS: |
3271 | ALIAS: |
1531 | eval = 1 |
3272 | eval = 1 |
1532 | CODE: |
3273 | CODE: |
1533 | { |
3274 | { |
1534 | if (coro->mainstack) |
3275 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1535 | { |
3276 | { |
1536 | struct coro temp; |
3277 | struct coro *current = SvSTATE_current; |
1537 | Zero (&temp, 1, struct coro); |
|
|
1538 | |
3278 | |
1539 | if (!(coro->flags & CF_RUNNING)) |
3279 | if (current != coro) |
1540 | { |
3280 | { |
|
|
3281 | PUTBACK; |
1541 | save_perl (aTHX_ &temp); |
3282 | save_perl (aTHX_ current); |
1542 | load_perl (aTHX_ coro); |
3283 | load_perl (aTHX_ coro); |
|
|
3284 | SPAGAIN; |
1543 | } |
3285 | } |
1544 | |
3286 | |
1545 | { |
3287 | PUSHSTACK; |
1546 | dSP; |
3288 | |
1547 | ENTER; |
|
|
1548 | SAVETMPS; |
|
|
1549 | PUSHMARK (SP); |
3289 | PUSHMARK (SP); |
1550 | PUTBACK; |
3290 | PUTBACK; |
|
|
3291 | |
1551 | if (ix) |
3292 | if (ix) |
1552 | eval_sv (coderef, 0); |
3293 | eval_sv (coderef, 0); |
1553 | else |
3294 | else |
1554 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3295 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3296 | |
|
|
3297 | POPSTACK; |
1555 | SPAGAIN; |
3298 | SPAGAIN; |
1556 | FREETMPS; |
|
|
1557 | LEAVE; |
|
|
1558 | PUTBACK; |
|
|
1559 | } |
|
|
1560 | |
3299 | |
1561 | if (!(coro->flags & CF_RUNNING)) |
3300 | if (current != coro) |
1562 | { |
3301 | { |
|
|
3302 | PUTBACK; |
1563 | save_perl (aTHX_ coro); |
3303 | save_perl (aTHX_ coro); |
1564 | load_perl (aTHX_ &temp); |
3304 | load_perl (aTHX_ current); |
|
|
3305 | SPAGAIN; |
1565 | } |
3306 | } |
1566 | } |
3307 | } |
1567 | } |
3308 | } |
1568 | |
3309 | |
1569 | SV * |
3310 | SV * |
… | |
… | |
1572 | ALIAS: |
3313 | ALIAS: |
1573 | is_ready = CF_READY |
3314 | is_ready = CF_READY |
1574 | is_running = CF_RUNNING |
3315 | is_running = CF_RUNNING |
1575 | is_new = CF_NEW |
3316 | is_new = CF_NEW |
1576 | is_destroyed = CF_DESTROYED |
3317 | is_destroyed = CF_DESTROYED |
|
|
3318 | is_suspended = CF_SUSPENDED |
1577 | CODE: |
3319 | CODE: |
1578 | RETVAL = boolSV (coro->flags & ix); |
3320 | RETVAL = boolSV (coro->flags & ix); |
1579 | OUTPUT: |
3321 | OUTPUT: |
1580 | RETVAL |
3322 | RETVAL |
1581 | |
3323 | |
1582 | void |
3324 | void |
|
|
3325 | throw (Coro::State self, SV *exception = &PL_sv_undef) |
|
|
3326 | PROTOTYPE: $;$ |
|
|
3327 | CODE: |
|
|
3328 | { |
|
|
3329 | struct coro *current = SvSTATE_current; |
|
|
3330 | SV **exceptionp = self == current ? &CORO_THROW : &self->except; |
|
|
3331 | SvREFCNT_dec (*exceptionp); |
|
|
3332 | SvGETMAGIC (exception); |
|
|
3333 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3334 | } |
|
|
3335 | |
|
|
3336 | void |
1583 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3337 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3338 | PROTOTYPE: $;$ |
|
|
3339 | C_ARGS: aTHX_ coro, flags |
1584 | |
3340 | |
1585 | SV * |
3341 | SV * |
1586 | has_stack (Coro::State coro) |
3342 | has_cctx (Coro::State coro) |
1587 | PROTOTYPE: $ |
3343 | PROTOTYPE: $ |
1588 | CODE: |
3344 | CODE: |
1589 | RETVAL = boolSV (!!coro->cctx); |
3345 | /* maybe manage the running flag differently */ |
|
|
3346 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
1590 | OUTPUT: |
3347 | OUTPUT: |
1591 | RETVAL |
3348 | RETVAL |
1592 | |
3349 | |
1593 | int |
3350 | int |
1594 | is_traced (Coro::State coro) |
3351 | is_traced (Coro::State coro) |
… | |
… | |
1596 | CODE: |
3353 | CODE: |
1597 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
3354 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1598 | OUTPUT: |
3355 | OUTPUT: |
1599 | RETVAL |
3356 | RETVAL |
1600 | |
3357 | |
1601 | IV |
3358 | UV |
1602 | rss (Coro::State coro) |
3359 | rss (Coro::State coro) |
1603 | PROTOTYPE: $ |
3360 | PROTOTYPE: $ |
1604 | ALIAS: |
3361 | ALIAS: |
1605 | usecount = 1 |
3362 | usecount = 1 |
1606 | CODE: |
3363 | CODE: |
… | |
… | |
1610 | case 1: RETVAL = coro->usecount; break; |
3367 | case 1: RETVAL = coro->usecount; break; |
1611 | } |
3368 | } |
1612 | OUTPUT: |
3369 | OUTPUT: |
1613 | RETVAL |
3370 | RETVAL |
1614 | |
3371 | |
|
|
3372 | void |
|
|
3373 | force_cctx () |
|
|
3374 | PROTOTYPE: |
|
|
3375 | CODE: |
|
|
3376 | cctx_current->idle_sp = 0; |
|
|
3377 | |
|
|
3378 | void |
|
|
3379 | swap_defsv (Coro::State self) |
|
|
3380 | PROTOTYPE: $ |
|
|
3381 | ALIAS: |
|
|
3382 | swap_defav = 1 |
|
|
3383 | CODE: |
|
|
3384 | if (!self->slot) |
|
|
3385 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
3386 | else |
|
|
3387 | { |
|
|
3388 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
3389 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
3390 | |
|
|
3391 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
3392 | } |
|
|
3393 | |
|
|
3394 | void |
|
|
3395 | cancel (Coro::State self) |
|
|
3396 | CODE: |
|
|
3397 | coro_state_destroy (aTHX_ self); |
|
|
3398 | coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ |
|
|
3399 | |
|
|
3400 | |
|
|
3401 | SV * |
|
|
3402 | enable_times (int enabled = enable_times) |
|
|
3403 | CODE: |
|
|
3404 | { |
|
|
3405 | RETVAL = boolSV (enable_times); |
|
|
3406 | |
|
|
3407 | if (enabled != enable_times) |
|
|
3408 | { |
|
|
3409 | enable_times = enabled; |
|
|
3410 | |
|
|
3411 | coro_times_update (); |
|
|
3412 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3413 | } |
|
|
3414 | } |
|
|
3415 | OUTPUT: |
|
|
3416 | RETVAL |
|
|
3417 | |
|
|
3418 | void |
|
|
3419 | times (Coro::State self) |
|
|
3420 | PPCODE: |
|
|
3421 | { |
|
|
3422 | struct coro *current = SvSTATE (coro_current); |
|
|
3423 | |
|
|
3424 | if (expect_false (current == self)) |
|
|
3425 | { |
|
|
3426 | coro_times_update (); |
|
|
3427 | coro_times_add (SvSTATE (coro_current)); |
|
|
3428 | } |
|
|
3429 | |
|
|
3430 | EXTEND (SP, 2); |
|
|
3431 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3432 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3433 | |
|
|
3434 | if (expect_false (current == self)) |
|
|
3435 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3436 | } |
|
|
3437 | |
|
|
3438 | void |
|
|
3439 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
|
|
3440 | CODE: |
|
|
3441 | { |
|
|
3442 | struct coro *current = SvSTATE_current; |
|
|
3443 | |
|
|
3444 | if (current == coro) |
|
|
3445 | SWAP_SVS (current); |
|
|
3446 | |
|
|
3447 | if (!coro->swap_sv) |
|
|
3448 | coro->swap_sv = newAV (); |
|
|
3449 | |
|
|
3450 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); |
|
|
3451 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); |
|
|
3452 | |
|
|
3453 | if (current == coro) |
|
|
3454 | SWAP_SVS (current); |
|
|
3455 | } |
|
|
3456 | |
1615 | |
3457 | |
1616 | MODULE = Coro::State PACKAGE = Coro |
3458 | MODULE = Coro::State PACKAGE = Coro |
1617 | |
3459 | |
1618 | BOOT: |
3460 | BOOT: |
1619 | { |
3461 | { |
1620 | int i; |
|
|
1621 | |
|
|
1622 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
3462 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
1623 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
3463 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
3464 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
3465 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
|
|
3466 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
1624 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
3467 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3468 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3469 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3470 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
1625 | |
3471 | |
1626 | coro_current = get_sv ("Coro::current", FALSE); |
3472 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
1627 | SvREADONLY_on (coro_current); |
3473 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
1628 | |
3474 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3475 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
|
|
3476 | |
1629 | coro_stash = gv_stashpv ("Coro", TRUE); |
3477 | coro_stash = gv_stashpv ("Coro", TRUE); |
1630 | |
3478 | |
1631 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3479 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
1632 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3480 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
1633 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3481 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
1634 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3482 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
1635 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3483 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
1636 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3484 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
1637 | |
|
|
1638 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1639 | coro_ready[i] = newAV (); |
|
|
1640 | |
3485 | |
1641 | { |
3486 | { |
1642 | SV *sv = perl_get_sv("Coro::API", 1); |
3487 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1643 | |
3488 | |
1644 | coroapi.schedule = api_schedule; |
3489 | coroapi.schedule = api_schedule; |
|
|
3490 | coroapi.schedule_to = api_schedule_to; |
1645 | coroapi.cede = api_cede; |
3491 | coroapi.cede = api_cede; |
1646 | coroapi.cede_notself = api_cede_notself; |
3492 | coroapi.cede_notself = api_cede_notself; |
1647 | coroapi.ready = api_ready; |
3493 | coroapi.ready = api_ready; |
1648 | coroapi.is_ready = api_is_ready; |
3494 | coroapi.is_ready = api_is_ready; |
1649 | coroapi.nready = &coro_nready; |
3495 | coroapi.nready = coro_nready; |
1650 | coroapi.current = coro_current; |
3496 | coroapi.current = coro_current; |
1651 | |
3497 | |
1652 | GCoroAPI = &coroapi; |
3498 | /*GCoroAPI = &coroapi;*/ |
1653 | sv_setiv (sv, (IV)&coroapi); |
3499 | sv_setiv (sv, (IV)&coroapi); |
1654 | SvREADONLY_on (sv); |
3500 | SvREADONLY_on (sv); |
1655 | } |
3501 | } |
1656 | } |
3502 | } |
|
|
3503 | |
|
|
3504 | SV * |
|
|
3505 | async (...) |
|
|
3506 | PROTOTYPE: &@ |
|
|
3507 | CODE: |
|
|
3508 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
3509 | api_ready (aTHX_ RETVAL); |
|
|
3510 | OUTPUT: |
|
|
3511 | RETVAL |
|
|
3512 | |
|
|
3513 | void |
|
|
3514 | terminate (...) |
|
|
3515 | CODE: |
|
|
3516 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3517 | |
|
|
3518 | void |
|
|
3519 | schedule (...) |
|
|
3520 | CODE: |
|
|
3521 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3522 | |
|
|
3523 | void |
|
|
3524 | schedule_to (...) |
|
|
3525 | CODE: |
|
|
3526 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3527 | |
|
|
3528 | void |
|
|
3529 | cede_to (...) |
|
|
3530 | CODE: |
|
|
3531 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3532 | |
|
|
3533 | void |
|
|
3534 | cede (...) |
|
|
3535 | CODE: |
|
|
3536 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3537 | |
|
|
3538 | void |
|
|
3539 | cede_notself (...) |
|
|
3540 | CODE: |
|
|
3541 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1657 | |
3542 | |
1658 | void |
3543 | void |
1659 | _set_current (SV *current) |
3544 | _set_current (SV *current) |
1660 | PROTOTYPE: $ |
3545 | PROTOTYPE: $ |
1661 | CODE: |
3546 | CODE: |
1662 | SvREFCNT_dec (SvRV (coro_current)); |
3547 | SvREFCNT_dec (SvRV (coro_current)); |
1663 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
3548 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
3549 | |
|
|
3550 | void |
|
|
3551 | _set_readyhook (SV *hook) |
|
|
3552 | PROTOTYPE: $ |
|
|
3553 | CODE: |
|
|
3554 | SvREFCNT_dec (coro_readyhook); |
|
|
3555 | SvGETMAGIC (hook); |
|
|
3556 | if (SvOK (hook)) |
|
|
3557 | { |
|
|
3558 | coro_readyhook = newSVsv (hook); |
|
|
3559 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
3560 | } |
|
|
3561 | else |
|
|
3562 | { |
|
|
3563 | coro_readyhook = 0; |
|
|
3564 | CORO_READYHOOK = 0; |
|
|
3565 | } |
1664 | |
3566 | |
1665 | int |
3567 | int |
1666 | prio (Coro::State coro, int newprio = 0) |
3568 | prio (Coro::State coro, int newprio = 0) |
|
|
3569 | PROTOTYPE: $;$ |
1667 | ALIAS: |
3570 | ALIAS: |
1668 | nice = 1 |
3571 | nice = 1 |
1669 | CODE: |
3572 | CODE: |
1670 | { |
3573 | { |
1671 | RETVAL = coro->prio; |
3574 | RETVAL = coro->prio; |
… | |
… | |
1673 | if (items > 1) |
3576 | if (items > 1) |
1674 | { |
3577 | { |
1675 | if (ix) |
3578 | if (ix) |
1676 | newprio = coro->prio - newprio; |
3579 | newprio = coro->prio - newprio; |
1677 | |
3580 | |
1678 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3581 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
1679 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3582 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
1680 | |
3583 | |
1681 | coro->prio = newprio; |
3584 | coro->prio = newprio; |
1682 | } |
3585 | } |
1683 | } |
3586 | } |
1684 | OUTPUT: |
3587 | OUTPUT: |
… | |
… | |
1686 | |
3589 | |
1687 | SV * |
3590 | SV * |
1688 | ready (SV *self) |
3591 | ready (SV *self) |
1689 | PROTOTYPE: $ |
3592 | PROTOTYPE: $ |
1690 | CODE: |
3593 | CODE: |
1691 | RETVAL = boolSV (api_ready (self)); |
3594 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1692 | OUTPUT: |
3595 | OUTPUT: |
1693 | RETVAL |
3596 | RETVAL |
1694 | |
3597 | |
1695 | int |
3598 | int |
1696 | nready (...) |
3599 | nready (...) |
… | |
… | |
1698 | CODE: |
3601 | CODE: |
1699 | RETVAL = coro_nready; |
3602 | RETVAL = coro_nready; |
1700 | OUTPUT: |
3603 | OUTPUT: |
1701 | RETVAL |
3604 | RETVAL |
1702 | |
3605 | |
1703 | # for async_pool speedup |
|
|
1704 | void |
3606 | void |
1705 | _pool_1 (SV *cb) |
3607 | suspend (Coro::State self) |
|
|
3608 | PROTOTYPE: $ |
1706 | CODE: |
3609 | CODE: |
1707 | { |
3610 | self->flags |= CF_SUSPENDED; |
1708 | struct coro *coro = SvSTATE (coro_current); |
|
|
1709 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1710 | AV *defav = GvAV (PL_defgv); |
|
|
1711 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1712 | AV *invoke_av; |
|
|
1713 | int i, len; |
|
|
1714 | |
3611 | |
1715 | if (!invoke) |
3612 | void |
1716 | croak ("\3terminate\2\n"); |
3613 | resume (Coro::State self) |
|
|
3614 | PROTOTYPE: $ |
|
|
3615 | CODE: |
|
|
3616 | self->flags &= ~CF_SUSPENDED; |
1717 | |
3617 | |
1718 | SvREFCNT_dec (coro->saved_deffh); |
3618 | void |
1719 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
3619 | _pool_handler (...) |
|
|
3620 | CODE: |
|
|
3621 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
1720 | |
3622 | |
1721 | hv_store (hv, "desc", sizeof ("desc") - 1, |
3623 | void |
1722 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
3624 | async_pool (SV *cv, ...) |
|
|
3625 | PROTOTYPE: &@ |
|
|
3626 | PPCODE: |
|
|
3627 | { |
|
|
3628 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3629 | AV *av = newAV (); |
|
|
3630 | SV *cb = ST (0); |
|
|
3631 | int i; |
1723 | |
3632 | |
1724 | invoke_av = (AV *)SvRV (invoke); |
3633 | av_extend (av, items - 2); |
1725 | len = av_len (invoke_av); |
3634 | for (i = 1; i < items; ++i) |
|
|
3635 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
1726 | |
3636 | |
1727 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
3637 | if ((SV *)hv == &PL_sv_undef) |
1728 | |
|
|
1729 | if (len > 0) |
|
|
1730 | { |
3638 | { |
1731 | av_fill (defav, len - 1); |
3639 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
1732 | for (i = 0; i < len; ++i) |
3640 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
1733 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
3641 | SvREFCNT_dec (sv); |
1734 | } |
3642 | } |
1735 | |
3643 | |
|
|
3644 | { |
|
|
3645 | struct coro *coro = SvSTATE_hv (hv); |
|
|
3646 | |
|
|
3647 | assert (!coro->invoke_cb); |
|
|
3648 | assert (!coro->invoke_av); |
|
|
3649 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3650 | coro->invoke_av = av; |
|
|
3651 | } |
|
|
3652 | |
|
|
3653 | api_ready (aTHX_ (SV *)hv); |
|
|
3654 | |
|
|
3655 | if (GIMME_V != G_VOID) |
|
|
3656 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3657 | else |
1736 | SvREFCNT_dec (invoke); |
3658 | SvREFCNT_dec (hv); |
1737 | } |
3659 | } |
1738 | |
3660 | |
1739 | void |
3661 | SV * |
1740 | _pool_2 (SV *cb) |
3662 | rouse_cb () |
|
|
3663 | PROTOTYPE: |
1741 | CODE: |
3664 | CODE: |
1742 | { |
3665 | RETVAL = coro_new_rouse_cb (aTHX); |
1743 | struct coro *coro = SvSTATE (coro_current); |
|
|
1744 | |
|
|
1745 | sv_setsv (cb, &PL_sv_undef); |
|
|
1746 | |
|
|
1747 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1748 | coro->saved_deffh = 0; |
|
|
1749 | |
|
|
1750 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1751 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1752 | croak ("\3terminate\2\n"); |
|
|
1753 | |
|
|
1754 | av_clear (GvAV (PL_defgv)); |
|
|
1755 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1756 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1757 | |
|
|
1758 | coro->prio = 0; |
|
|
1759 | |
|
|
1760 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1761 | api_trace (coro_current, 0); |
|
|
1762 | |
|
|
1763 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | |
|
|
1767 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
1768 | |
|
|
1769 | SV * |
|
|
1770 | _get_state () |
|
|
1771 | CODE: |
|
|
1772 | { |
|
|
1773 | struct io_state *data; |
|
|
1774 | |
|
|
1775 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1776 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1777 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1778 | SvPOK_only (RETVAL); |
|
|
1779 | |
|
|
1780 | data->errorno = errno; |
|
|
1781 | data->laststype = PL_laststype; |
|
|
1782 | data->laststatval = PL_laststatval; |
|
|
1783 | data->statcache = PL_statcache; |
|
|
1784 | } |
|
|
1785 | OUTPUT: |
3666 | OUTPUT: |
1786 | RETVAL |
3667 | RETVAL |
1787 | |
3668 | |
1788 | void |
3669 | void |
1789 | _set_state (char *data_) |
3670 | rouse_wait (...) |
|
|
3671 | PROTOTYPE: ;$ |
|
|
3672 | PPCODE: |
|
|
3673 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
3674 | |
|
|
3675 | void |
|
|
3676 | on_enter (SV *block) |
|
|
3677 | ALIAS: |
|
|
3678 | on_leave = 1 |
1790 | PROTOTYPE: $ |
3679 | PROTOTYPE: & |
1791 | CODE: |
3680 | CODE: |
1792 | { |
3681 | { |
1793 | struct io_state *data = (void *)data_; |
3682 | struct coro *coro = SvSTATE_current; |
|
|
3683 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
1794 | |
3684 | |
1795 | errno = data->errorno; |
3685 | block = s_get_cv_croak (block); |
1796 | PL_laststype = data->laststype; |
|
|
1797 | PL_laststatval = data->laststatval; |
|
|
1798 | PL_statcache = data->statcache; |
|
|
1799 | } |
|
|
1800 | |
3686 | |
|
|
3687 | if (!*avp) |
|
|
3688 | *avp = newAV (); |
|
|
3689 | |
|
|
3690 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
3691 | |
|
|
3692 | if (!ix) |
|
|
3693 | on_enterleave_call (aTHX_ block); |
|
|
3694 | |
|
|
3695 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3696 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
3697 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3698 | } |
|
|
3699 | |
|
|
3700 | |
|
|
3701 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
3702 | |
|
|
3703 | BOOT: |
|
|
3704 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
3705 | |
|
|
3706 | |
|
|
3707 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
3708 | |
|
|
3709 | SV * |
|
|
3710 | new (SV *klass, SV *count = 0) |
|
|
3711 | CODE: |
|
|
3712 | { |
|
|
3713 | int semcnt = 1; |
|
|
3714 | |
|
|
3715 | if (count) |
|
|
3716 | { |
|
|
3717 | SvGETMAGIC (count); |
|
|
3718 | |
|
|
3719 | if (SvOK (count)) |
|
|
3720 | semcnt = SvIV (count); |
|
|
3721 | } |
|
|
3722 | |
|
|
3723 | RETVAL = sv_bless ( |
|
|
3724 | coro_waitarray_new (aTHX_ semcnt), |
|
|
3725 | GvSTASH (CvGV (cv)) |
|
|
3726 | ); |
|
|
3727 | } |
|
|
3728 | OUTPUT: |
|
|
3729 | RETVAL |
|
|
3730 | |
|
|
3731 | # helper for Coro::Channel and others |
|
|
3732 | SV * |
|
|
3733 | _alloc (int count) |
|
|
3734 | CODE: |
|
|
3735 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3736 | OUTPUT: |
|
|
3737 | RETVAL |
|
|
3738 | |
|
|
3739 | SV * |
|
|
3740 | count (SV *self) |
|
|
3741 | CODE: |
|
|
3742 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3743 | OUTPUT: |
|
|
3744 | RETVAL |
|
|
3745 | |
|
|
3746 | void |
|
|
3747 | up (SV *self, int adjust = 1) |
|
|
3748 | ALIAS: |
|
|
3749 | adjust = 1 |
|
|
3750 | CODE: |
|
|
3751 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3752 | |
|
|
3753 | void |
|
|
3754 | down (...) |
|
|
3755 | CODE: |
|
|
3756 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3757 | |
|
|
3758 | void |
|
|
3759 | wait (...) |
|
|
3760 | CODE: |
|
|
3761 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3762 | |
|
|
3763 | void |
|
|
3764 | try (SV *self) |
|
|
3765 | PPCODE: |
|
|
3766 | { |
|
|
3767 | AV *av = (AV *)SvRV (self); |
|
|
3768 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3769 | IV count = SvIVX (count_sv); |
|
|
3770 | |
|
|
3771 | if (count > 0) |
|
|
3772 | { |
|
|
3773 | --count; |
|
|
3774 | SvIVX (count_sv) = count; |
|
|
3775 | XSRETURN_YES; |
|
|
3776 | } |
|
|
3777 | else |
|
|
3778 | XSRETURN_NO; |
|
|
3779 | } |
|
|
3780 | |
|
|
3781 | void |
|
|
3782 | waiters (SV *self) |
|
|
3783 | PPCODE: |
|
|
3784 | { |
|
|
3785 | AV *av = (AV *)SvRV (self); |
|
|
3786 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3787 | |
|
|
3788 | if (GIMME_V == G_SCALAR) |
|
|
3789 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3790 | else |
|
|
3791 | { |
|
|
3792 | int i; |
|
|
3793 | EXTEND (SP, wcount); |
|
|
3794 | for (i = 1; i <= wcount; ++i) |
|
|
3795 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3796 | } |
|
|
3797 | } |
|
|
3798 | |
|
|
3799 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
3800 | |
|
|
3801 | void |
|
|
3802 | _may_delete (SV *sem, int count, int extra_refs) |
|
|
3803 | PPCODE: |
|
|
3804 | { |
|
|
3805 | AV *av = (AV *)SvRV (sem); |
|
|
3806 | |
|
|
3807 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
3808 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
3809 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
3810 | XSRETURN_YES; |
|
|
3811 | |
|
|
3812 | XSRETURN_NO; |
|
|
3813 | } |
|
|
3814 | |
|
|
3815 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3816 | |
|
|
3817 | SV * |
|
|
3818 | new (SV *klass) |
|
|
3819 | CODE: |
|
|
3820 | RETVAL = sv_bless ( |
|
|
3821 | coro_waitarray_new (aTHX_ 0), |
|
|
3822 | GvSTASH (CvGV (cv)) |
|
|
3823 | ); |
|
|
3824 | OUTPUT: |
|
|
3825 | RETVAL |
|
|
3826 | |
|
|
3827 | void |
|
|
3828 | wait (...) |
|
|
3829 | CODE: |
|
|
3830 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3831 | |
|
|
3832 | void |
|
|
3833 | broadcast (SV *self) |
|
|
3834 | CODE: |
|
|
3835 | { |
|
|
3836 | AV *av = (AV *)SvRV (self); |
|
|
3837 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3838 | } |
|
|
3839 | |
|
|
3840 | void |
|
|
3841 | send (SV *self) |
|
|
3842 | CODE: |
|
|
3843 | { |
|
|
3844 | AV *av = (AV *)SvRV (self); |
|
|
3845 | |
|
|
3846 | if (AvFILLp (av)) |
|
|
3847 | coro_signal_wake (aTHX_ av, 1); |
|
|
3848 | else |
|
|
3849 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3850 | } |
|
|
3851 | |
|
|
3852 | IV |
|
|
3853 | awaited (SV *self) |
|
|
3854 | CODE: |
|
|
3855 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3856 | OUTPUT: |
|
|
3857 | RETVAL |
|
|
3858 | |
|
|
3859 | |
|
|
3860 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
3861 | |
|
|
3862 | BOOT: |
|
|
3863 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
3864 | |
|
|
3865 | void |
|
|
3866 | _schedule (...) |
|
|
3867 | CODE: |
|
|
3868 | { |
|
|
3869 | static int incede; |
|
|
3870 | |
|
|
3871 | api_cede_notself (aTHX); |
|
|
3872 | |
|
|
3873 | ++incede; |
|
|
3874 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
3875 | ; |
|
|
3876 | |
|
|
3877 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
3878 | if (coro_nready >= incede) |
|
|
3879 | { |
|
|
3880 | PUSHMARK (SP); |
|
|
3881 | PUTBACK; |
|
|
3882 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3883 | } |
|
|
3884 | |
|
|
3885 | --incede; |
|
|
3886 | } |
|
|
3887 | |
|
|
3888 | |
|
|
3889 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3890 | |
|
|
3891 | void |
|
|
3892 | _register (char *target, char *proto, SV *req) |
|
|
3893 | CODE: |
|
|
3894 | { |
|
|
3895 | SV *req_cv = s_get_cv_croak (req); |
|
|
3896 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3897 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3898 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3899 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3900 | } |
|
|
3901 | |
|
|
3902 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
3903 | |
|
|
3904 | void |
|
|
3905 | patch_pp_sselect () |
|
|
3906 | CODE: |
|
|
3907 | if (!coro_old_pp_sselect) |
|
|
3908 | { |
|
|
3909 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
3910 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
3911 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
3912 | } |
|
|
3913 | |
|
|
3914 | void |
|
|
3915 | unpatch_pp_sselect () |
|
|
3916 | CODE: |
|
|
3917 | if (coro_old_pp_sselect) |
|
|
3918 | { |
|
|
3919 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
3920 | coro_old_pp_sselect = 0; |
|
|
3921 | } |
|
|
3922 | |