1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
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2 | |
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3 | #define PERL_NO_GET_CONTEXT |
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4 | #define PERL_EXT |
2 | |
5 | |
3 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
4 | #include "perl.h" |
7 | #include "perl.h" |
5 | #include "XSUB.h" |
8 | #include "XSUB.h" |
6 | |
9 | |
7 | #include "patchlevel.h" |
10 | #include "patchlevel.h" |
8 | |
11 | |
9 | #if USE_VALGRIND |
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10 | # include <valgrind/valgrind.h> |
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11 | #endif |
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12 | |
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13 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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14 | (PERL_REVISION > (a) \ |
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15 | || (PERL_REVISION == (a) \ |
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16 | && (PERL_VERSION > (b) \ |
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17 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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18 | |
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19 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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20 | # ifndef PL_ppaddr |
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21 | # define PL_ppaddr ppaddr |
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22 | # endif |
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23 | # ifndef call_sv |
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24 | # define call_sv perl_call_sv |
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25 | # endif |
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26 | # ifndef get_sv |
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27 | # define get_sv perl_get_sv |
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28 | # endif |
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29 | # ifndef get_cv |
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30 | # define get_cv perl_get_cv |
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31 | # endif |
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32 | # ifndef IS_PADGV |
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33 | # define IS_PADGV(v) 0 |
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34 | # endif |
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35 | # ifndef IS_PADCONST |
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36 | # define IS_PADCONST(v) 0 |
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37 | # endif |
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38 | #endif |
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39 | |
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40 | #include <stdio.h> |
12 | #include <stdio.h> |
41 | #include <errno.h> |
13 | #include <errno.h> |
42 | |
14 | #include <assert.h> |
43 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
15 | #include <inttypes.h> /* portable stdint.h */ |
44 | # undef STACKGUARD |
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45 | #endif |
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46 | |
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47 | #ifndef STACKGUARD |
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48 | # define STACKGUARD 0 |
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49 | #endif |
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50 | |
16 | |
51 | #ifdef HAVE_MMAP |
17 | #ifdef HAVE_MMAP |
52 | # include <unistd.h> |
18 | # include <unistd.h> |
53 | # include <sys/mman.h> |
19 | # include <sys/mman.h> |
54 | # ifndef MAP_ANONYMOUS |
20 | # ifndef MAP_ANONYMOUS |
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69 | #else |
35 | #else |
70 | # define PAGESIZE 0 |
36 | # define PAGESIZE 0 |
71 | # define BOOT_PAGESIZE (void)0 |
37 | # define BOOT_PAGESIZE (void)0 |
72 | #endif |
38 | #endif |
73 | |
39 | |
74 | /* The next macro should declare a variable stacklevel that contains and approximation |
40 | #if CORO_USE_VALGRIND |
75 | * to the current C stack pointer. Its property is that it changes with each call |
41 | # include <valgrind/valgrind.h> |
76 | * and should be unique. */ |
42 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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43 | #else |
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44 | # define REGISTER_STACK(cctx,start,end) |
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45 | #endif |
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46 | |
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47 | /* the maximum number of idle cctx that will be pooled */ |
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48 | #define MAX_IDLE_CCTX 8 |
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49 | |
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50 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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51 | (PERL_REVISION > (a) \ |
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52 | || (PERL_REVISION == (a) \ |
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53 | && (PERL_VERSION > (b) \ |
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54 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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55 | |
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56 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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57 | # ifndef PL_ppaddr |
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58 | # define PL_ppaddr ppaddr |
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59 | # endif |
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60 | # ifndef call_sv |
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61 | # define call_sv perl_call_sv |
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62 | # endif |
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63 | # ifndef get_sv |
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64 | # define get_sv perl_get_sv |
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65 | # endif |
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66 | # ifndef get_cv |
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67 | # define get_cv perl_get_cv |
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68 | # endif |
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69 | # ifndef IS_PADGV |
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70 | # define IS_PADGV(v) 0 |
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71 | # endif |
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72 | # ifndef IS_PADCONST |
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73 | # define IS_PADCONST(v) 0 |
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74 | # endif |
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75 | #endif |
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76 | |
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77 | /* 5.8.7 */ |
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78 | #ifndef SvRV_set |
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79 | # define SvRV_set(s,v) SvRV(s) = (v) |
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80 | #endif |
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81 | |
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82 | /* 5.8.8 */ |
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83 | #ifndef GV_NOTQUAL |
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84 | # define GV_NOTQUAL 0 |
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85 | #endif |
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86 | #ifndef newSV |
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87 | # define newSV(l) NEWSV(0,l) |
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88 | #endif |
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89 | |
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90 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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91 | # undef CORO_STACKGUARD |
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92 | #endif |
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93 | |
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94 | #ifndef CORO_STACKGUARD |
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95 | # define CORO_STACKGUARD 0 |
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96 | #endif |
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97 | |
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98 | /* prefer perl internal functions over our own? */ |
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99 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
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100 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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101 | #endif |
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102 | |
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103 | /* The next macros try to return the current stack pointer, in an as |
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104 | * portable way as possible. */ |
77 | #define dSTACKLEVEL int stacklevel |
105 | #define dSTACKLEVEL volatile char stacklevel |
78 | #define STACKLEVEL ((void *)&stacklevel) |
106 | #define STACKLEVEL ((void *)&stacklevel) |
79 | |
107 | |
80 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
108 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
81 | |
109 | |
82 | #if __GNUC__ >= 3 |
110 | #if __GNUC__ >= 3 |
83 | # define attribute(x) __attribute__(x) |
111 | # define attribute(x) __attribute__(x) |
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112 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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113 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
84 | #else |
114 | #else |
85 | # define attribute(x) |
115 | # define attribute(x) |
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116 | # define BARRIER |
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117 | # define expect(expr,value) (expr) |
86 | #endif |
118 | #endif |
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119 | |
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120 | #define expect_false(expr) expect ((expr) != 0, 0) |
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121 | #define expect_true(expr) expect ((expr) != 0, 1) |
87 | |
122 | |
88 | #define NOINLINE attribute ((noinline)) |
123 | #define NOINLINE attribute ((noinline)) |
89 | |
124 | |
90 | #include "CoroAPI.h" |
125 | #include "CoroAPI.h" |
91 | |
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92 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
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93 | |
126 | |
94 | #ifdef USE_ITHREADS |
127 | #ifdef USE_ITHREADS |
95 | static perl_mutex coro_mutex; |
128 | static perl_mutex coro_mutex; |
96 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
129 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
97 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
130 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
98 | #else |
131 | #else |
99 | # define LOCK (void)0 |
132 | # define LOCK (void)0 |
100 | # define UNLOCK (void)0 |
133 | # define UNLOCK (void)0 |
101 | #endif |
134 | #endif |
102 | |
135 | |
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136 | #define strpair(const) const, sizeof (const) - 1 |
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137 | |
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138 | /* helper storage struct for Coro::AIO */ |
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139 | struct io_state |
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140 | { |
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141 | int errorno; |
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142 | I32 laststype; |
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143 | int laststatval; |
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144 | Stat_t statcache; |
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145 | }; |
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146 | |
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147 | static size_t coro_stacksize = CORO_STACKSIZE; |
103 | static struct CoroAPI coroapi; |
148 | static struct CoroAPI coroapi; |
104 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
149 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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150 | static JMPENV *main_top_env; |
105 | static HV *coro_state_stash, *coro_stash; |
151 | static HV *coro_state_stash, *coro_stash; |
106 | static SV *coro_mortal; /* will be freed after next transfer */ |
152 | static SV *coro_mortal; /* will be freed after next transfer */ |
107 | |
153 | |
108 | static struct coro_cctx *cctx_first; |
154 | static GV *irsgv; /* $/ */ |
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155 | static GV *stdoutgv; /* *STDOUT */ |
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156 | |
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157 | static HV *hv_sig; /* %SIG */ |
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158 | static SV *sv_diehook; |
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159 | static SV *sv_warnhook; |
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160 | |
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161 | /* async_pool helper stuff */ |
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162 | static SV *sv_pool_rss; |
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163 | static SV *sv_pool_size; |
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164 | static AV *av_async_pool; |
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165 | |
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166 | static struct coro_cctx *cctx_first[3]; /* index by GIMME_V type, void, scalar, array */ |
109 | static int cctx_count, cctx_idle; |
167 | static int cctx_count, cctx_idle[3]; |
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168 | |
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169 | enum { |
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170 | CC_MAPPED = 0x01, |
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171 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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172 | CC_TRACE = 0x04, |
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173 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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174 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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175 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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176 | }; |
110 | |
177 | |
111 | /* this is a structure representing a c-level coroutine */ |
178 | /* this is a structure representing a c-level coroutine */ |
112 | typedef struct coro_cctx { |
179 | typedef struct coro_cctx { |
113 | struct coro_cctx *next; |
180 | struct coro_cctx *next; |
114 | |
181 | |
115 | /* the stack */ |
182 | /* the stack */ |
116 | void *sptr; |
183 | void *sptr; |
117 | long ssize; /* positive == mmap, otherwise malloc */ |
184 | size_t ssize; |
118 | |
185 | |
119 | /* cpu state */ |
186 | /* cpu state */ |
120 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
187 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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188 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
121 | JMPENV *top_env; |
189 | JMPENV *top_env; |
122 | coro_context cctx; |
190 | coro_context cctx; |
123 | |
191 | |
124 | #if USE_VALGRIND |
192 | #if CORO_USE_VALGRIND |
125 | int valgrind_id; |
193 | int valgrind_id; |
126 | #endif |
194 | #endif |
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195 | unsigned char flags; |
127 | } coro_cctx; |
196 | } coro_cctx; |
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197 | |
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198 | enum { |
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199 | CF_RUNNING = 0x0001, /* coroutine is running */ |
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200 | CF_READY = 0x0002, /* coroutine is ready */ |
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201 | CF_NEW = 0x0004, /* has never been switched to */ |
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202 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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203 | }; |
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204 | |
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205 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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206 | typedef struct { |
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207 | SV *defsv; |
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208 | AV *defav; |
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209 | SV *errsv; |
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210 | SV *irsgv; |
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211 | #define VAR(name,type) type name; |
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212 | # include "state.h" |
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213 | #undef VAR |
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214 | } perl_slots; |
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215 | |
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216 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
128 | |
217 | |
129 | /* this is a structure representing a perl-level coroutine */ |
218 | /* this is a structure representing a perl-level coroutine */ |
130 | struct coro { |
219 | struct coro { |
131 | /* the c coroutine allocated to this perl coroutine, if any */ |
220 | /* the c coroutine allocated to this perl coroutine, if any */ |
132 | coro_cctx *cctx; |
221 | coro_cctx *cctx; |
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222 | int gimme; |
133 | |
223 | |
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224 | /* process data */ |
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225 | AV *mainstack; |
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226 | perl_slots *slot; /* basically the saved sp */ |
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227 | |
134 | /* data associated with this coroutine (initial args) */ |
228 | AV *args; /* data associated with this coroutine (initial args) */ |
135 | AV *args; |
229 | int refcnt; /* coroutines are refcounted, yes */ |
136 | int refcnt; |
230 | int flags; /* CF_ flags */ |
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231 | HV *hv; /* the perl hash associated with this coro, if any */ |
137 | |
232 | |
138 | /* optionally saved, might be zero */ |
233 | /* statistics */ |
139 | AV *defav; |
234 | int usecount; /* number of transfers to this coro */ |
140 | SV *defsv; |
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141 | SV *errsv; |
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142 | |
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143 | #define VAR(name,type) type name; |
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144 | # include "state.h" |
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145 | #undef VAR |
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146 | |
235 | |
147 | /* coro process data */ |
236 | /* coro process data */ |
148 | int prio; |
237 | int prio; |
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238 | SV *throw; /* exception to be thrown */ |
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239 | |
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240 | /* async_pool */ |
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241 | SV *saved_deffh; |
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242 | |
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243 | /* linked list */ |
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244 | struct coro *next, *prev; |
149 | }; |
245 | }; |
150 | |
246 | |
151 | typedef struct coro *Coro__State; |
247 | typedef struct coro *Coro__State; |
152 | typedef struct coro *Coro__State_or_hashref; |
248 | typedef struct coro *Coro__State_or_hashref; |
153 | |
249 | |
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250 | /** Coro ********************************************************************/ |
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251 | |
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252 | #define PRIO_MAX 3 |
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253 | #define PRIO_HIGH 1 |
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254 | #define PRIO_NORMAL 0 |
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255 | #define PRIO_LOW -1 |
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256 | #define PRIO_IDLE -3 |
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257 | #define PRIO_MIN -4 |
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258 | |
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259 | /* for Coro.pm */ |
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260 | static SV *coro_current; |
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261 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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262 | static int coro_nready; |
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263 | static struct coro *coro_first; |
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264 | |
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265 | /** lowlevel stuff **********************************************************/ |
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266 | |
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267 | static SV * |
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268 | coro_get_sv (const char *name, int create) |
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269 | { |
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270 | #if PERL_VERSION_ATLEAST (5,9,0) |
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271 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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272 | get_sv (name, create); |
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273 | #endif |
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274 | return get_sv (name, create); |
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275 | } |
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276 | |
154 | static AV * |
277 | static AV * |
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278 | coro_get_av (const char *name, int create) |
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279 | { |
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280 | #if PERL_VERSION_ATLEAST (5,9,0) |
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281 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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282 | get_av (name, create); |
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283 | #endif |
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284 | return get_av (name, create); |
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285 | } |
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286 | |
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287 | static HV * |
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288 | coro_get_hv (const char *name, int create) |
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289 | { |
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290 | #if PERL_VERSION_ATLEAST (5,9,0) |
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291 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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292 | get_hv (name, create); |
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293 | #endif |
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294 | return get_hv (name, create); |
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295 | } |
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296 | |
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297 | static AV * |
155 | coro_clone_padlist (CV *cv) |
298 | coro_clone_padlist (pTHX_ CV *cv) |
156 | { |
299 | { |
157 | AV *padlist = CvPADLIST (cv); |
300 | AV *padlist = CvPADLIST (cv); |
158 | AV *newpadlist, *newpad; |
301 | AV *newpadlist, *newpad; |
159 | |
302 | |
160 | newpadlist = newAV (); |
303 | newpadlist = newAV (); |
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172 | |
315 | |
173 | return newpadlist; |
316 | return newpadlist; |
174 | } |
317 | } |
175 | |
318 | |
176 | static void |
319 | static void |
177 | free_padlist (AV *padlist) |
320 | free_padlist (pTHX_ AV *padlist) |
178 | { |
321 | { |
179 | /* may be during global destruction */ |
322 | /* may be during global destruction */ |
180 | if (SvREFCNT (padlist)) |
323 | if (SvREFCNT (padlist)) |
181 | { |
324 | { |
182 | I32 i = AvFILLp (padlist); |
325 | I32 i = AvFILLp (padlist); |
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203 | AV *padlist; |
346 | AV *padlist; |
204 | AV *av = (AV *)mg->mg_obj; |
347 | AV *av = (AV *)mg->mg_obj; |
205 | |
348 | |
206 | /* casting is fun. */ |
349 | /* casting is fun. */ |
207 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
350 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
208 | free_padlist (padlist); |
351 | free_padlist (aTHX_ padlist); |
209 | |
352 | |
210 | SvREFCNT_dec (av); |
353 | SvREFCNT_dec (av); |
211 | |
354 | |
212 | return 0; |
355 | return 0; |
213 | } |
356 | } |
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221 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
364 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
222 | ? SvMAGIC (cv) \ |
365 | ? SvMAGIC (cv) \ |
223 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
366 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
224 | : 0 |
367 | : 0 |
225 | |
368 | |
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369 | static struct coro * |
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370 | SvSTATE_ (pTHX_ SV *coro) |
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371 | { |
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372 | HV *stash; |
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373 | MAGIC *mg; |
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374 | |
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375 | if (SvROK (coro)) |
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376 | coro = SvRV (coro); |
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377 | |
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378 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
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379 | croak ("Coro::State object required"); |
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380 | |
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381 | stash = SvSTASH (coro); |
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382 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
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383 | { |
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384 | /* very slow, but rare, check */ |
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385 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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386 | croak ("Coro::State object required"); |
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387 | } |
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388 | |
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389 | mg = CORO_MAGIC (coro); |
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390 | return (struct coro *)mg->mg_ptr; |
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391 | } |
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392 | |
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393 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
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394 | |
226 | /* the next two functions merely cache the padlists */ |
395 | /* the next two functions merely cache the padlists */ |
227 | static void |
396 | static void |
228 | get_padlist (CV *cv) |
397 | get_padlist (pTHX_ CV *cv) |
229 | { |
398 | { |
230 | MAGIC *mg = CORO_MAGIC (cv); |
399 | MAGIC *mg = CORO_MAGIC (cv); |
231 | AV *av; |
400 | AV *av; |
232 | |
401 | |
233 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
402 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
234 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
403 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
235 | else |
404 | else |
236 | { |
405 | { |
237 | #if 0 |
406 | #if CORO_PREFER_PERL_FUNCTIONS |
238 | /* this is probably cleaner, but also slower? */ |
407 | /* this is probably cleaner, but also slower? */ |
239 | CV *cp = Perl_cv_clone (cv); |
408 | CV *cp = Perl_cv_clone (cv); |
240 | CvPADLIST (cv) = CvPADLIST (cp); |
409 | CvPADLIST (cv) = CvPADLIST (cp); |
241 | CvPADLIST (cp) = 0; |
410 | CvPADLIST (cp) = 0; |
242 | SvREFCNT_dec (cp); |
411 | SvREFCNT_dec (cp); |
243 | #else |
412 | #else |
244 | CvPADLIST (cv) = coro_clone_padlist (cv); |
413 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
245 | #endif |
414 | #endif |
246 | } |
415 | } |
247 | } |
416 | } |
248 | |
417 | |
249 | static void |
418 | static void |
250 | put_padlist (CV *cv) |
419 | put_padlist (pTHX_ CV *cv) |
251 | { |
420 | { |
252 | MAGIC *mg = CORO_MAGIC (cv); |
421 | MAGIC *mg = CORO_MAGIC (cv); |
253 | AV *av; |
422 | AV *av; |
254 | |
423 | |
255 | if (!mg) |
424 | if (expect_false (!mg)) |
256 | { |
425 | { |
257 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
426 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
258 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
427 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
259 | mg->mg_virtual = &vtbl_coro; |
428 | mg->mg_virtual = &vtbl_coro; |
260 | mg->mg_obj = (SV *)newAV (); |
429 | mg->mg_obj = (SV *)newAV (); |
261 | } |
430 | } |
262 | |
431 | |
263 | av = (AV *)mg->mg_obj; |
432 | av = (AV *)mg->mg_obj; |
264 | |
433 | |
265 | if (AvFILLp (av) >= AvMAX (av)) |
434 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
266 | av_extend (av, AvMAX (av) + 1); |
435 | av_extend (av, AvMAX (av) + 1); |
267 | |
436 | |
268 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
437 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
269 | } |
438 | } |
270 | |
439 | |
271 | #define SB do { |
440 | /** load & save, init *******************************************************/ |
272 | #define SE } while (0) |
|
|
273 | |
|
|
274 | #define LOAD(state) load_state((state)); |
|
|
275 | #define SAVE(state,flags) save_state((state),(flags)); |
|
|
276 | |
|
|
277 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
|
|
278 | |
441 | |
279 | static void |
442 | static void |
280 | load_state(Coro__State c) |
443 | load_perl (pTHX_ Coro__State c) |
281 | { |
444 | { |
|
|
445 | perl_slots *slot = c->slot; |
|
|
446 | c->slot = 0; |
|
|
447 | |
|
|
448 | PL_mainstack = c->mainstack; |
|
|
449 | |
|
|
450 | GvSV (PL_defgv) = slot->defsv; |
|
|
451 | GvAV (PL_defgv) = slot->defav; |
|
|
452 | GvSV (PL_errgv) = slot->errsv; |
|
|
453 | GvSV (irsgv) = slot->irsgv; |
|
|
454 | |
282 | #define VAR(name,type) PL_ ## name = c->name; |
455 | #define VAR(name,type) PL_ ## name = slot->name; |
283 | # include "state.h" |
456 | # include "state.h" |
284 | #undef VAR |
457 | #undef VAR |
285 | |
458 | |
286 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
459 | /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/ |
287 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
460 | /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/ |
288 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
289 | |
461 | |
290 | { |
462 | { |
291 | dSP; |
463 | dSP; |
|
|
464 | |
292 | CV *cv; |
465 | CV *cv; |
293 | |
466 | |
294 | /* now do the ugly restore mess */ |
467 | /* now do the ugly restore mess */ |
295 | while ((cv = (CV *)POPs)) |
468 | while (expect_true (cv = (CV *)POPs)) |
296 | { |
469 | { |
297 | put_padlist (cv); /* mark this padlist as available */ |
470 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
298 | CvDEPTH (cv) = PTR2IV (POPs); |
471 | CvDEPTH (cv) = PTR2IV (POPs); |
299 | CvPADLIST (cv) = (AV *)POPs; |
472 | CvPADLIST (cv) = (AV *)POPs; |
300 | } |
473 | } |
301 | |
474 | |
302 | PUTBACK; |
475 | PUTBACK; |
303 | } |
476 | } |
304 | } |
477 | } |
305 | |
478 | |
306 | static void |
479 | static void |
307 | save_state(Coro__State c, int flags) |
480 | save_perl (pTHX_ Coro__State c) |
308 | { |
481 | { |
309 | { |
482 | { |
310 | dSP; |
483 | dSP; |
311 | I32 cxix = cxstack_ix; |
484 | I32 cxix = cxstack_ix; |
312 | PERL_CONTEXT *ccstk = cxstack; |
485 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
315 | /* |
488 | /* |
316 | * the worst thing you can imagine happens first - we have to save |
489 | * the worst thing you can imagine happens first - we have to save |
317 | * (and reinitialize) all cv's in the whole callchain :( |
490 | * (and reinitialize) all cv's in the whole callchain :( |
318 | */ |
491 | */ |
319 | |
492 | |
320 | PUSHs (Nullsv); |
493 | XPUSHs (Nullsv); |
321 | /* this loop was inspired by pp_caller */ |
494 | /* this loop was inspired by pp_caller */ |
322 | for (;;) |
495 | for (;;) |
323 | { |
496 | { |
324 | while (cxix >= 0) |
497 | while (expect_true (cxix >= 0)) |
325 | { |
498 | { |
326 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
499 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
327 | |
500 | |
328 | if (CxTYPE(cx) == CXt_SUB) |
501 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
329 | { |
502 | { |
330 | CV *cv = cx->blk_sub.cv; |
503 | CV *cv = cx->blk_sub.cv; |
331 | |
504 | |
332 | if (CvDEPTH (cv)) |
505 | if (expect_true (CvDEPTH (cv))) |
333 | { |
506 | { |
334 | EXTEND (SP, 3); |
507 | EXTEND (SP, 3); |
335 | |
|
|
336 | PUSHs ((SV *)CvPADLIST(cv)); |
508 | PUSHs ((SV *)CvPADLIST (cv)); |
337 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
509 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
338 | PUSHs ((SV *)cv); |
510 | PUSHs ((SV *)cv); |
339 | |
511 | |
340 | CvDEPTH (cv) = 0; |
512 | CvDEPTH (cv) = 0; |
341 | get_padlist (cv); |
513 | get_padlist (aTHX_ cv); |
342 | } |
514 | } |
343 | } |
515 | } |
344 | #ifdef CXt_FORMAT |
|
|
345 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
346 | { |
|
|
347 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
348 | /* my bold guess is as a simple, plain sub... */ |
|
|
349 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
350 | } |
|
|
351 | #endif |
|
|
352 | } |
516 | } |
353 | |
517 | |
354 | if (top_si->si_type == PERLSI_MAIN) |
518 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
355 | break; |
519 | break; |
356 | |
520 | |
357 | top_si = top_si->si_prev; |
521 | top_si = top_si->si_prev; |
358 | ccstk = top_si->si_cxstack; |
522 | ccstk = top_si->si_cxstack; |
359 | cxix = top_si->si_cxix; |
523 | cxix = top_si->si_cxix; |
360 | } |
524 | } |
361 | |
525 | |
362 | PUTBACK; |
526 | PUTBACK; |
363 | } |
527 | } |
364 | |
528 | |
365 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
529 | /* allocate some space on the context stack for our purposes */ |
366 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
530 | /* we manually unroll here, as usually 2 slots is enough */ |
367 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
531 | if (SLOT_COUNT >= 1) CXINC; |
|
|
532 | if (SLOT_COUNT >= 2) CXINC; |
|
|
533 | if (SLOT_COUNT >= 3) CXINC; |
|
|
534 | { |
|
|
535 | int i; |
|
|
536 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
537 | CXINC; |
|
|
538 | } |
|
|
539 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
368 | |
540 | |
|
|
541 | c->mainstack = PL_mainstack; |
|
|
542 | |
|
|
543 | { |
|
|
544 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
545 | |
|
|
546 | slot->defav = GvAV (PL_defgv); |
|
|
547 | slot->defsv = DEFSV; |
|
|
548 | slot->errsv = ERRSV; |
|
|
549 | slot->irsgv = GvSV (irsgv); |
|
|
550 | |
369 | #define VAR(name,type)c->name = PL_ ## name; |
551 | #define VAR(name,type) slot->name = PL_ ## name; |
370 | # include "state.h" |
552 | # include "state.h" |
371 | #undef VAR |
553 | #undef VAR |
|
|
554 | } |
372 | } |
555 | } |
373 | |
556 | |
374 | /* |
557 | /* |
375 | * allocate various perl stacks. This is an exact copy |
558 | * allocate various perl stacks. This is an exact copy |
376 | * of perl.c:init_stacks, except that it uses less memory |
559 | * of perl.c:init_stacks, except that it uses less memory |
377 | * on the (sometimes correct) assumption that coroutines do |
560 | * on the (sometimes correct) assumption that coroutines do |
378 | * not usually need a lot of stackspace. |
561 | * not usually need a lot of stackspace. |
379 | */ |
562 | */ |
|
|
563 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
564 | # define coro_init_stacks init_stacks |
|
|
565 | #else |
380 | static void |
566 | static void |
381 | coro_init_stacks () |
567 | coro_init_stacks (pTHX) |
382 | { |
568 | { |
383 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
569 | PL_curstackinfo = new_stackinfo(32, 8); |
384 | PL_curstackinfo->si_type = PERLSI_MAIN; |
570 | PL_curstackinfo->si_type = PERLSI_MAIN; |
385 | PL_curstack = PL_curstackinfo->si_stack; |
571 | PL_curstack = PL_curstackinfo->si_stack; |
386 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
572 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
387 | |
573 | |
388 | PL_stack_base = AvARRAY(PL_curstack); |
574 | PL_stack_base = AvARRAY(PL_curstack); |
389 | PL_stack_sp = PL_stack_base; |
575 | PL_stack_sp = PL_stack_base; |
390 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
576 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
391 | |
577 | |
392 | New(50,PL_tmps_stack,96,SV*); |
578 | New(50,PL_tmps_stack,32,SV*); |
393 | PL_tmps_floor = -1; |
579 | PL_tmps_floor = -1; |
394 | PL_tmps_ix = -1; |
580 | PL_tmps_ix = -1; |
395 | PL_tmps_max = 96; |
581 | PL_tmps_max = 32; |
396 | |
582 | |
397 | New(54,PL_markstack,16,I32); |
583 | New(54,PL_markstack,16,I32); |
398 | PL_markstack_ptr = PL_markstack; |
584 | PL_markstack_ptr = PL_markstack; |
399 | PL_markstack_max = PL_markstack + 16; |
585 | PL_markstack_max = PL_markstack + 16; |
400 | |
586 | |
401 | #ifdef SET_MARK_OFFSET |
587 | #ifdef SET_MARK_OFFSET |
402 | SET_MARK_OFFSET; |
588 | SET_MARK_OFFSET; |
403 | #endif |
589 | #endif |
404 | |
590 | |
405 | New(54,PL_scopestack,16,I32); |
591 | New(54,PL_scopestack,8,I32); |
406 | PL_scopestack_ix = 0; |
592 | PL_scopestack_ix = 0; |
407 | PL_scopestack_max = 16; |
593 | PL_scopestack_max = 8; |
408 | |
594 | |
409 | New(54,PL_savestack,96,ANY); |
595 | New(54,PL_savestack,24,ANY); |
410 | PL_savestack_ix = 0; |
596 | PL_savestack_ix = 0; |
411 | PL_savestack_max = 96; |
597 | PL_savestack_max = 24; |
412 | |
598 | |
413 | #if !PERL_VERSION_ATLEAST (5,9,0) |
599 | #if !PERL_VERSION_ATLEAST (5,9,0) |
414 | New(54,PL_retstack,8,OP*); |
600 | New(54,PL_retstack,4,OP*); |
415 | PL_retstack_ix = 0; |
601 | PL_retstack_ix = 0; |
416 | PL_retstack_max = 8; |
602 | PL_retstack_max = 4; |
417 | #endif |
603 | #endif |
418 | } |
604 | } |
|
|
605 | #endif |
419 | |
606 | |
420 | /* |
607 | /* |
421 | * destroy the stacks, the callchain etc... |
608 | * destroy the stacks, the callchain etc... |
422 | */ |
609 | */ |
423 | static void |
610 | static void |
424 | coro_destroy_stacks () |
611 | coro_destroy_stacks (pTHX) |
425 | { |
612 | { |
426 | if (!IN_DESTRUCT) |
|
|
427 | { |
|
|
428 | /* is this ugly, I ask? */ |
|
|
429 | LEAVE_SCOPE (0); |
|
|
430 | |
|
|
431 | /* sure it is, but more important: is it correct?? :/ */ |
|
|
432 | FREETMPS; |
|
|
433 | |
|
|
434 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
435 | } |
|
|
436 | |
|
|
437 | while (PL_curstackinfo->si_next) |
613 | while (PL_curstackinfo->si_next) |
438 | PL_curstackinfo = PL_curstackinfo->si_next; |
614 | PL_curstackinfo = PL_curstackinfo->si_next; |
439 | |
615 | |
440 | while (PL_curstackinfo) |
616 | while (PL_curstackinfo) |
441 | { |
617 | { |
442 | PERL_SI *p = PL_curstackinfo->si_prev; |
618 | PERL_SI *p = PL_curstackinfo->si_prev; |
443 | |
619 | |
444 | { /*D*//*remove*/ |
|
|
445 | dSP; |
|
|
446 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
447 | PUTBACK; /* possibly superfluous */ |
|
|
448 | } |
|
|
449 | |
|
|
450 | if (!IN_DESTRUCT) |
620 | if (!IN_DESTRUCT) |
451 | { |
|
|
452 | dounwind (-1);/*D*//*remove*/ |
|
|
453 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
621 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
454 | } |
|
|
455 | |
622 | |
456 | Safefree (PL_curstackinfo->si_cxstack); |
623 | Safefree (PL_curstackinfo->si_cxstack); |
457 | Safefree (PL_curstackinfo); |
624 | Safefree (PL_curstackinfo); |
458 | PL_curstackinfo = p; |
625 | PL_curstackinfo = p; |
459 | } |
626 | } |
… | |
… | |
465 | #if !PERL_VERSION_ATLEAST (5,9,0) |
632 | #if !PERL_VERSION_ATLEAST (5,9,0) |
466 | Safefree (PL_retstack); |
633 | Safefree (PL_retstack); |
467 | #endif |
634 | #endif |
468 | } |
635 | } |
469 | |
636 | |
|
|
637 | static size_t |
|
|
638 | coro_rss (pTHX_ struct coro *coro) |
|
|
639 | { |
|
|
640 | size_t rss = sizeof (*coro); |
|
|
641 | |
|
|
642 | if (coro->mainstack) |
|
|
643 | { |
|
|
644 | perl_slots tmp_slot; |
|
|
645 | perl_slots *slot; |
|
|
646 | |
|
|
647 | if (coro->flags & CF_RUNNING) |
|
|
648 | { |
|
|
649 | slot = &tmp_slot; |
|
|
650 | |
|
|
651 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
652 | # include "state.h" |
|
|
653 | #undef VAR |
|
|
654 | } |
|
|
655 | else |
|
|
656 | slot = coro->slot; |
|
|
657 | |
|
|
658 | rss += sizeof (slot->curstackinfo); |
|
|
659 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
660 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
661 | rss += slot->tmps_max * sizeof (SV *); |
|
|
662 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
663 | rss += slot->scopestack_max * sizeof (I32); |
|
|
664 | rss += slot->savestack_max * sizeof (ANY); |
|
|
665 | |
|
|
666 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
667 | rss += slot->retstack_max * sizeof (OP *); |
|
|
668 | #endif |
|
|
669 | } |
|
|
670 | |
|
|
671 | return rss; |
|
|
672 | } |
|
|
673 | |
|
|
674 | /** coroutine stack handling ************************************************/ |
|
|
675 | |
470 | static void |
676 | static void |
471 | setup_coro (struct coro *coro) |
677 | coro_setup (pTHX_ struct coro *coro) |
472 | { |
678 | { |
473 | /* |
679 | /* |
474 | * emulate part of the perl startup here. |
680 | * emulate part of the perl startup here. |
475 | */ |
681 | */ |
476 | |
|
|
477 | coro_init_stacks (); |
682 | coro_init_stacks (aTHX); |
478 | |
683 | |
|
|
684 | PL_runops = RUNOPS_DEFAULT; |
|
|
685 | PL_curcop = &PL_compiling; |
|
|
686 | PL_in_eval = EVAL_NULL; |
479 | PL_curcop = 0; |
687 | PL_comppad = 0; |
480 | PL_in_eval = 0; |
|
|
481 | PL_curpm = 0; |
688 | PL_curpm = 0; |
|
|
689 | PL_curpad = 0; |
|
|
690 | PL_localizing = 0; |
|
|
691 | PL_dirty = 0; |
|
|
692 | PL_restartop = 0; |
|
|
693 | PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
694 | PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
695 | |
|
|
696 | GvSV (PL_defgv) = newSV (0); |
|
|
697 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
698 | GvSV (PL_errgv) = newSV (0); |
|
|
699 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
700 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
701 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
482 | |
702 | |
483 | { |
703 | { |
484 | dSP; |
704 | dSP; |
485 | LOGOP myop; |
705 | LOGOP myop; |
486 | |
706 | |
487 | /* I have no idea why this is needed, but it is */ |
|
|
488 | PUSHMARK (SP); |
|
|
489 | |
|
|
490 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
491 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
492 | |
|
|
493 | Zero (&myop, 1, LOGOP); |
707 | Zero (&myop, 1, LOGOP); |
494 | myop.op_next = Nullop; |
708 | myop.op_next = Nullop; |
495 | myop.op_flags = OPf_WANT_VOID; |
709 | myop.op_flags = OPf_WANT_VOID; |
496 | |
710 | |
|
|
711 | PUSHMARK (SP); |
|
|
712 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
|
|
713 | PUTBACK; |
497 | PL_op = (OP *)&myop; |
714 | PL_op = (OP *)&myop; |
498 | |
|
|
499 | PUSHMARK (SP); |
|
|
500 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
|
|
501 | PUTBACK; |
|
|
502 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
715 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
503 | SPAGAIN; |
716 | SPAGAIN; |
504 | |
717 | |
505 | ENTER; /* necessary e.g. for dounwind */ |
718 | /* |
|
|
719 | * now its very tricky. the "tail" of the next transfer might end up |
|
|
720 | * either in a new cctx, or an existing one. |
|
|
721 | * in case of an existing one we have to take care of whatever |
|
|
722 | * entersub and transfer do to the perl stack. |
|
|
723 | */ |
|
|
724 | ENTER; |
|
|
725 | EXTEND (SP, 4); |
|
|
726 | PUSHs ((SV *)0); /* items */ |
|
|
727 | PUSHs ((SV *)0); /* ix, set_stacklevel */ |
|
|
728 | PUSHs ((SV *)(sp - PL_stack_base + 1)); /* ax */ |
|
|
729 | PUSHs ((SV *)0); /* again */ |
|
|
730 | PUTBACK; |
506 | } |
731 | } |
507 | } |
732 | } |
508 | |
733 | |
509 | static void |
734 | static void |
|
|
735 | coro_destroy (pTHX_ struct coro *coro) |
|
|
736 | { |
|
|
737 | if (!IN_DESTRUCT) |
|
|
738 | { |
|
|
739 | /* restore all saved variables and stuff */ |
|
|
740 | LEAVE_SCOPE (0); |
|
|
741 | assert (PL_tmps_floor == -1); |
|
|
742 | |
|
|
743 | /* free all temporaries */ |
|
|
744 | FREETMPS; |
|
|
745 | assert (PL_tmps_ix == -1); |
|
|
746 | |
|
|
747 | /* unwind all extra stacks */ |
|
|
748 | POPSTACK_TO (PL_mainstack); |
|
|
749 | |
|
|
750 | /* unwind main stack */ |
|
|
751 | dounwind (-1); |
|
|
752 | } |
|
|
753 | |
|
|
754 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
755 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
756 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
757 | SvREFCNT_dec (PL_defoutgv); |
|
|
758 | SvREFCNT_dec (PL_rs); |
|
|
759 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
760 | |
|
|
761 | SvREFCNT_dec (PL_diehook); |
|
|
762 | SvREFCNT_dec (PL_warnhook); |
|
|
763 | |
|
|
764 | SvREFCNT_dec (coro->saved_deffh); |
|
|
765 | SvREFCNT_dec (coro->throw); |
|
|
766 | |
|
|
767 | coro_destroy_stacks (aTHX); |
|
|
768 | } |
|
|
769 | |
|
|
770 | static void |
510 | free_coro_mortal () |
771 | free_coro_mortal (pTHX) |
511 | { |
772 | { |
512 | if (coro_mortal) |
773 | if (expect_true (coro_mortal)) |
513 | { |
774 | { |
514 | SvREFCNT_dec (coro_mortal); |
775 | SvREFCNT_dec (coro_mortal); |
515 | coro_mortal = 0; |
776 | coro_mortal = 0; |
516 | } |
777 | } |
517 | } |
778 | } |
518 | |
779 | |
|
|
780 | static int |
|
|
781 | runops_trace (pTHX) |
|
|
782 | { |
|
|
783 | COP *oldcop = 0; |
|
|
784 | int oldcxix = -2; |
|
|
785 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
786 | coro_cctx *cctx = coro->cctx; |
|
|
787 | |
|
|
788 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
789 | { |
|
|
790 | PERL_ASYNC_CHECK (); |
|
|
791 | |
|
|
792 | if (cctx->flags & CC_TRACE_ALL) |
|
|
793 | { |
|
|
794 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
795 | { |
|
|
796 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
797 | SV **bot, **top; |
|
|
798 | AV *av = newAV (); /* return values */ |
|
|
799 | SV **cb; |
|
|
800 | dSP; |
|
|
801 | |
|
|
802 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
803 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
804 | if (isGV (gv)) |
|
|
805 | gv_efullname3 (fullname, gv, 0); |
|
|
806 | |
|
|
807 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
808 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
809 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
810 | : bot; |
|
|
811 | |
|
|
812 | av_extend (av, top - bot); |
|
|
813 | while (bot < top) |
|
|
814 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
815 | |
|
|
816 | PL_runops = RUNOPS_DEFAULT; |
|
|
817 | ENTER; |
|
|
818 | SAVETMPS; |
|
|
819 | EXTEND (SP, 3); |
|
|
820 | PUSHMARK (SP); |
|
|
821 | PUSHs (&PL_sv_no); |
|
|
822 | PUSHs (fullname); |
|
|
823 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
824 | PUTBACK; |
|
|
825 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
|
|
826 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
827 | SPAGAIN; |
|
|
828 | FREETMPS; |
|
|
829 | LEAVE; |
|
|
830 | PL_runops = runops_trace; |
|
|
831 | } |
|
|
832 | |
|
|
833 | if (oldcop != PL_curcop) |
|
|
834 | { |
|
|
835 | oldcop = PL_curcop; |
|
|
836 | |
|
|
837 | if (PL_curcop != &PL_compiling) |
|
|
838 | { |
|
|
839 | SV **cb; |
|
|
840 | |
|
|
841 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
842 | { |
|
|
843 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
844 | |
|
|
845 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
846 | { |
|
|
847 | runops_proc_t old_runops = PL_runops; |
|
|
848 | dSP; |
|
|
849 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
850 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
851 | |
|
|
852 | if (isGV (gv)) |
|
|
853 | gv_efullname3 (fullname, gv, 0); |
|
|
854 | |
|
|
855 | PL_runops = RUNOPS_DEFAULT; |
|
|
856 | ENTER; |
|
|
857 | SAVETMPS; |
|
|
858 | EXTEND (SP, 3); |
|
|
859 | PUSHMARK (SP); |
|
|
860 | PUSHs (&PL_sv_yes); |
|
|
861 | PUSHs (fullname); |
|
|
862 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
863 | PUTBACK; |
|
|
864 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
|
|
865 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
866 | SPAGAIN; |
|
|
867 | FREETMPS; |
|
|
868 | LEAVE; |
|
|
869 | PL_runops = runops_trace; |
|
|
870 | } |
|
|
871 | |
|
|
872 | oldcxix = cxstack_ix; |
|
|
873 | } |
|
|
874 | |
|
|
875 | if (cctx->flags & CC_TRACE_LINE) |
|
|
876 | { |
|
|
877 | dSP; |
|
|
878 | |
|
|
879 | PL_runops = RUNOPS_DEFAULT; |
|
|
880 | ENTER; |
|
|
881 | SAVETMPS; |
|
|
882 | EXTEND (SP, 3); |
|
|
883 | PL_runops = RUNOPS_DEFAULT; |
|
|
884 | PUSHMARK (SP); |
|
|
885 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
886 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
887 | PUTBACK; |
|
|
888 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); |
|
|
889 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
890 | SPAGAIN; |
|
|
891 | FREETMPS; |
|
|
892 | LEAVE; |
|
|
893 | PL_runops = runops_trace; |
|
|
894 | } |
|
|
895 | } |
|
|
896 | } |
|
|
897 | } |
|
|
898 | } |
|
|
899 | |
|
|
900 | TAINT_NOT; |
|
|
901 | return 0; |
|
|
902 | } |
|
|
903 | |
|
|
904 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
905 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
906 | /* during execution of a perl program */ |
519 | static void NOINLINE |
907 | static void NOINLINE |
520 | prepare_cctx (coro_cctx *cctx) |
908 | cctx_prepare (pTHX_ coro_cctx *cctx) |
521 | { |
909 | { |
522 | dSP; |
910 | dSP; |
523 | LOGOP myop; |
911 | LOGOP myop; |
524 | |
912 | |
|
|
913 | PL_top_env = &PL_start_env; |
|
|
914 | |
|
|
915 | if (cctx->flags & CC_TRACE) |
|
|
916 | PL_runops = runops_trace; |
|
|
917 | |
525 | Zero (&myop, 1, LOGOP); |
918 | Zero (&myop, 1, LOGOP); |
526 | myop.op_next = PL_op; |
919 | myop.op_next = PL_op; |
527 | myop.op_flags = OPf_WANT_VOID; |
920 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
528 | |
|
|
529 | sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx)); |
|
|
530 | |
921 | |
531 | PUSHMARK (SP); |
922 | PUSHMARK (SP); |
|
|
923 | EXTEND (SP, 2); |
|
|
924 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
532 | XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
925 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
533 | PUTBACK; |
926 | PUTBACK; |
|
|
927 | PL_op = (OP *)&myop; |
534 | PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX); |
928 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
535 | SPAGAIN; |
929 | SPAGAIN; |
536 | } |
930 | } |
537 | |
931 | |
|
|
932 | /* |
|
|
933 | * this is a _very_ stripped down perl interpreter ;) |
|
|
934 | */ |
538 | static void |
935 | static void |
539 | coro_run (void *arg) |
936 | cctx_run (void *arg) |
540 | { |
937 | { |
|
|
938 | dTHX; |
|
|
939 | |
541 | /* coro_run is the alternative epilogue of transfer() */ |
940 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
542 | UNLOCK; |
941 | UNLOCK; |
543 | |
942 | |
|
|
943 | /* we now skip the entersub that lead to transfer() */ |
|
|
944 | PL_op = PL_op->op_next; |
|
|
945 | |
|
|
946 | /* inject a fake subroutine call to cctx_init */ |
|
|
947 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
|
|
948 | |
|
|
949 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
950 | PL_restartop = PL_op; |
|
|
951 | perl_run (PL_curinterp); |
|
|
952 | |
544 | /* |
953 | /* |
545 | * this is a _very_ stripped down perl interpreter ;) |
954 | * If perl-run returns we assume exit() was being called or the coro |
|
|
955 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
956 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
957 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
958 | * coroutine as Coro has no such concept |
546 | */ |
959 | */ |
547 | PL_top_env = &PL_start_env; |
960 | PL_top_env = main_top_env; |
548 | |
961 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
549 | /* inject call to cctx_init */ |
|
|
550 | prepare_cctx ((coro_cctx *)arg); |
|
|
551 | |
|
|
552 | /* somebody will hit me for both perl_run and PL_restartop */ |
|
|
553 | perl_run (PL_curinterp); |
|
|
554 | |
|
|
555 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
|
|
556 | abort (); |
|
|
557 | } |
962 | } |
558 | |
963 | |
559 | static coro_cctx * |
964 | static coro_cctx * |
560 | cctx_new () |
965 | cctx_new () |
561 | { |
966 | { |
562 | coro_cctx *cctx; |
967 | coro_cctx *cctx; |
|
|
968 | void *stack_start; |
|
|
969 | size_t stack_size; |
563 | |
970 | |
564 | ++cctx_count; |
971 | ++cctx_count; |
565 | |
972 | |
566 | New (0, cctx, 1, coro_cctx); |
973 | Newz (0, cctx, 1, coro_cctx); |
567 | |
974 | |
568 | #if HAVE_MMAP |
975 | #if HAVE_MMAP |
569 | |
|
|
570 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
976 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
571 | /* mmap suppsedly does allocate-on-write for us */ |
977 | /* mmap supposedly does allocate-on-write for us */ |
572 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
978 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
573 | |
979 | |
574 | if (cctx->sptr == (void *)-1) |
980 | if (cctx->sptr != (void *)-1) |
575 | { |
|
|
576 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
577 | _exit (EXIT_FAILURE); |
|
|
578 | } |
981 | { |
579 | |
|
|
580 | # if STACKGUARD |
982 | # if CORO_STACKGUARD |
581 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
983 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
582 | # endif |
984 | # endif |
|
|
985 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
986 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
987 | cctx->flags |= CC_MAPPED; |
|
|
988 | } |
|
|
989 | else |
|
|
990 | #endif |
|
|
991 | { |
|
|
992 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
993 | New (0, cctx->sptr, coro_stacksize, long); |
583 | |
994 | |
584 | #else |
|
|
585 | |
|
|
586 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
587 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
588 | |
|
|
589 | if (!cctx->sptr) |
995 | if (!cctx->sptr) |
590 | { |
996 | { |
591 | perror ("FATAL: unable to malloc stack for coroutine"); |
997 | perror ("FATAL: unable to allocate stack for coroutine"); |
592 | _exit (EXIT_FAILURE); |
998 | _exit (EXIT_FAILURE); |
593 | } |
999 | } |
594 | |
1000 | |
595 | #endif |
1001 | stack_start = cctx->sptr; |
|
|
1002 | stack_size = cctx->ssize; |
|
|
1003 | } |
596 | |
1004 | |
597 | #if USE_VALGRIND |
1005 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
598 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
1006 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
599 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
600 | cctx->ssize + (char *)cctx->sptr |
|
|
601 | ); |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
|
|
605 | |
1007 | |
606 | return cctx; |
1008 | return cctx; |
607 | } |
1009 | } |
608 | |
1010 | |
609 | static void |
1011 | static void |
610 | cctx_free (coro_cctx *cctx) |
1012 | cctx_destroy (coro_cctx *cctx) |
611 | { |
1013 | { |
612 | if (!cctx) |
1014 | if (!cctx) |
613 | return; |
1015 | return; |
614 | |
1016 | |
615 | --cctx_count; |
1017 | --cctx_count; |
616 | |
1018 | |
617 | #if USE_VALGRIND |
1019 | #if CORO_USE_VALGRIND |
618 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1020 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
619 | #endif |
1021 | #endif |
620 | |
1022 | |
621 | #if HAVE_MMAP |
1023 | #if HAVE_MMAP |
|
|
1024 | if (cctx->flags & CC_MAPPED) |
622 | munmap (cctx->sptr, cctx->ssize); |
1025 | munmap (cctx->sptr, cctx->ssize); |
|
|
1026 | else |
|
|
1027 | #endif |
|
|
1028 | Safefree (cctx->sptr); |
|
|
1029 | |
|
|
1030 | Safefree (cctx); |
|
|
1031 | } |
|
|
1032 | |
|
|
1033 | /* wether this cctx should be destructed */ |
|
|
1034 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
|
|
1035 | |
|
|
1036 | static coro_cctx * |
|
|
1037 | cctx_get (pTHX_ int gimme) |
|
|
1038 | { |
|
|
1039 | while (expect_true (cctx_first[gimme])) |
|
|
1040 | { |
|
|
1041 | coro_cctx *cctx = cctx_first[gimme]; |
|
|
1042 | cctx_first[gimme] = cctx->next; |
|
|
1043 | --cctx_idle[gimme]; |
|
|
1044 | |
|
|
1045 | if (expect_true (!CCTX_EXPIRED (cctx))) |
|
|
1046 | return cctx; |
|
|
1047 | |
|
|
1048 | cctx_destroy (cctx); |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | assert (!gimme); |
|
|
1052 | return cctx_new (); |
|
|
1053 | } |
|
|
1054 | |
|
|
1055 | static void |
|
|
1056 | cctx_put (coro_cctx *cctx, int gimme) |
|
|
1057 | { |
|
|
1058 | /* free another cctx if overlimit */ |
|
|
1059 | if (expect_false (cctx_idle[gimme] >= MAX_IDLE_CCTX)) |
|
|
1060 | { |
|
|
1061 | coro_cctx *first = cctx_first[gimme]; |
|
|
1062 | cctx_first[gimme] = first->next; |
|
|
1063 | --cctx_idle[gimme]; |
|
|
1064 | |
|
|
1065 | cctx_destroy (first); |
|
|
1066 | } |
|
|
1067 | |
|
|
1068 | ++cctx_idle[gimme]; |
|
|
1069 | cctx->next = cctx_first[gimme]; |
|
|
1070 | cctx_first[gimme] = cctx; |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | /** coroutine switching *****************************************************/ |
|
|
1074 | |
|
|
1075 | static void |
|
|
1076 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1077 | { |
|
|
1078 | if (expect_true (prev != next)) |
|
|
1079 | { |
|
|
1080 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1081 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
1082 | |
|
|
1083 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1084 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1085 | |
|
|
1086 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1087 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1088 | |
|
|
1089 | if ( |
|
|
1090 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
1091 | expect_false (PL_parser) |
623 | #else |
1092 | #else |
624 | Safefree (cctx->sptr); |
1093 | expect_false (PL_lex_state != LEX_NOTPARSING) |
625 | #endif |
1094 | #endif |
626 | |
1095 | ) |
627 | Safefree (cctx); |
1096 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
628 | } |
|
|
629 | |
|
|
630 | static coro_cctx * |
|
|
631 | cctx_get () |
|
|
632 | { |
|
|
633 | coro_cctx *cctx; |
|
|
634 | |
|
|
635 | if (cctx_first) |
|
|
636 | { |
|
|
637 | --cctx_idle; |
|
|
638 | cctx = cctx_first; |
|
|
639 | cctx_first = cctx->next; |
|
|
640 | } |
|
|
641 | else |
|
|
642 | { |
|
|
643 | cctx = cctx_new (); |
|
|
644 | PL_op = PL_op->op_next; |
|
|
645 | } |
1097 | } |
646 | |
|
|
647 | return cctx; |
|
|
648 | } |
1098 | } |
649 | |
1099 | |
650 | static void |
1100 | /* always use the TRANSFER macro */ |
651 | cctx_put (coro_cctx *cctx) |
|
|
652 | { |
|
|
653 | ++cctx_idle; |
|
|
654 | cctx->next = cctx_first; |
|
|
655 | cctx_first = cctx; |
|
|
656 | } |
|
|
657 | |
|
|
658 | /* never call directly, always through the coro_state_transfer global variable */ |
|
|
659 | static void NOINLINE |
1101 | static void NOINLINE |
660 | transfer (struct coro *prev, struct coro *next, int flags) |
1102 | transfer (pTHX_ struct coro *prev, struct coro *next) |
661 | { |
1103 | { |
662 | dSTACKLEVEL; |
1104 | dSTACKLEVEL; |
663 | |
1105 | |
664 | /* sometimes transfer is only called to set idle_sp */ |
1106 | /* sometimes transfer is only called to set idle_sp */ |
665 | if (flags == TRANSFER_SET_STACKLEVEL) |
1107 | if (expect_false (!next)) |
|
|
1108 | { |
666 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1109 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
|
|
1110 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
|
|
1111 | } |
667 | else if (prev != next) |
1112 | else if (expect_true (prev != next)) |
668 | { |
1113 | { |
669 | coro_cctx *prev__cctx; |
1114 | coro_cctx *prev__cctx; |
670 | |
1115 | |
|
|
1116 | if (expect_false (prev->flags & CF_NEW)) |
|
|
1117 | { |
|
|
1118 | /* create a new empty context */ |
|
|
1119 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1120 | prev->flags &= ~CF_NEW; |
|
|
1121 | prev->flags |= CF_RUNNING; |
|
|
1122 | } |
|
|
1123 | |
|
|
1124 | prev->flags &= ~CF_RUNNING; |
|
|
1125 | next->flags |= CF_RUNNING; |
|
|
1126 | |
671 | LOCK; |
1127 | LOCK; |
672 | |
1128 | |
673 | if (next->mainstack) |
1129 | if (expect_false (next->flags & CF_NEW)) |
674 | { |
1130 | { |
675 | /* coroutine already started */ |
1131 | /* need to start coroutine */ |
676 | SAVE (prev, flags); |
1132 | next->flags &= ~CF_NEW; |
677 | LOAD (next); |
1133 | /* first get rid of the old state */ |
|
|
1134 | save_perl (aTHX_ prev); |
|
|
1135 | /* setup coroutine call */ |
|
|
1136 | coro_setup (aTHX_ next); |
678 | } |
1137 | } |
679 | else |
1138 | else |
680 | { |
1139 | { |
681 | /* need to start coroutine */ |
1140 | /* coroutine already started */ |
682 | /* first get rid of the old state */ |
1141 | save_perl (aTHX_ prev); |
683 | SAVE (prev, -1); |
1142 | load_perl (aTHX_ next); |
684 | /* setup coroutine call */ |
|
|
685 | setup_coro (next); |
|
|
686 | /* need a stack */ |
|
|
687 | next->cctx = 0; |
|
|
688 | } |
1143 | } |
689 | |
1144 | |
690 | if (!prev->cctx) |
|
|
691 | /* create a new empty context */ |
|
|
692 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
693 | |
|
|
694 | prev__cctx = prev->cctx; |
1145 | prev__cctx = prev->cctx; |
695 | |
1146 | |
696 | /* possibly "free" the cctx */ |
1147 | /* possibly "free" the cctx */ |
697 | if (prev__cctx->idle_sp == STACKLEVEL) |
1148 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
698 | { |
1149 | { |
699 | cctx_put (prev__cctx); |
1150 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
1151 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
1152 | |
700 | prev->cctx = 0; |
1153 | prev->cctx = 0; |
|
|
1154 | |
|
|
1155 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1156 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1157 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1158 | if (!next->cctx) |
|
|
1159 | next->cctx = cctx_get (aTHX_ next->gimme); |
|
|
1160 | |
|
|
1161 | cctx_put (prev__cctx, prev->gimme); |
701 | } |
1162 | } |
702 | |
1163 | |
|
|
1164 | ++next->usecount; |
|
|
1165 | |
703 | if (!next->cctx) |
1166 | if (expect_true (!next->cctx)) |
704 | next->cctx = cctx_get (); |
1167 | next->cctx = cctx_get (aTHX_ next->gimme); |
705 | |
1168 | |
706 | if (prev__cctx != next->cctx) |
1169 | if (expect_false (prev__cctx != next->cctx)) |
707 | { |
1170 | { |
708 | prev__cctx->top_env = PL_top_env; |
1171 | prev__cctx->top_env = PL_top_env; |
709 | PL_top_env = next->cctx->top_env; |
1172 | PL_top_env = next->cctx->top_env; |
710 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1173 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
711 | } |
1174 | } |
712 | |
1175 | |
713 | free_coro_mortal (); |
1176 | free_coro_mortal (aTHX); |
714 | |
|
|
715 | UNLOCK; |
1177 | UNLOCK; |
|
|
1178 | |
|
|
1179 | if (expect_false (prev->throw || next->throw)) |
|
|
1180 | { |
|
|
1181 | struct coro *coro = SvSTATE (coro_current); |
|
|
1182 | |
|
|
1183 | if (coro->throw) |
|
|
1184 | { |
|
|
1185 | SV *exception = coro->throw; |
|
|
1186 | coro->throw = 0; |
|
|
1187 | sv_setsv (ERRSV, exception); |
|
|
1188 | croak (0); |
|
|
1189 | } |
|
|
1190 | } |
716 | } |
1191 | } |
717 | } |
1192 | } |
718 | |
1193 | |
719 | struct transfer_args |
1194 | struct transfer_args |
720 | { |
1195 | { |
721 | struct coro *prev, *next; |
1196 | struct coro *prev, *next; |
722 | int flags; |
|
|
723 | }; |
1197 | }; |
724 | |
1198 | |
725 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags) |
1199 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
|
|
1200 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
726 | |
1201 | |
|
|
1202 | /** high level stuff ********************************************************/ |
|
|
1203 | |
727 | static void |
1204 | static int |
728 | coro_state_destroy (struct coro *coro) |
1205 | coro_state_destroy (pTHX_ struct coro *coro) |
729 | { |
1206 | { |
730 | if (coro->refcnt--) |
1207 | if (coro->flags & CF_DESTROYED) |
731 | return; |
1208 | return 0; |
|
|
1209 | |
|
|
1210 | coro->flags |= CF_DESTROYED; |
|
|
1211 | |
|
|
1212 | if (coro->flags & CF_READY) |
|
|
1213 | { |
|
|
1214 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1215 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1216 | LOCK; |
|
|
1217 | --coro_nready; |
|
|
1218 | UNLOCK; |
|
|
1219 | } |
|
|
1220 | else |
|
|
1221 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
732 | |
1222 | |
733 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1223 | if (coro->mainstack && coro->mainstack != main_mainstack) |
734 | { |
1224 | { |
735 | struct coro temp; |
1225 | struct coro temp; |
736 | |
1226 | |
737 | SAVE ((&temp), TRANSFER_SAVE_ALL); |
1227 | if (coro->flags & CF_RUNNING) |
738 | LOAD (coro); |
1228 | croak ("FATAL: tried to destroy currently running coroutine"); |
739 | |
1229 | |
740 | coro_destroy_stacks (); |
1230 | save_perl (aTHX_ &temp); |
|
|
1231 | load_perl (aTHX_ coro); |
741 | |
1232 | |
742 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1233 | coro_destroy (aTHX_ coro); |
743 | |
1234 | |
|
|
1235 | load_perl (aTHX_ &temp); |
|
|
1236 | |
744 | coro->mainstack = 0; |
1237 | coro->slot = 0; |
745 | } |
1238 | } |
746 | |
1239 | |
747 | cctx_free (coro->cctx); |
1240 | cctx_destroy (coro->cctx); |
748 | SvREFCNT_dec (coro->args); |
1241 | SvREFCNT_dec (coro->args); |
749 | Safefree (coro); |
1242 | |
|
|
1243 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1244 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1245 | if (coro == coro_first) coro_first = coro->next; |
|
|
1246 | |
|
|
1247 | return 1; |
750 | } |
1248 | } |
751 | |
1249 | |
752 | static int |
1250 | static int |
753 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
1251 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
754 | { |
1252 | { |
755 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1253 | struct coro *coro = (struct coro *)mg->mg_ptr; |
756 | mg->mg_ptr = 0; |
1254 | mg->mg_ptr = 0; |
757 | |
1255 | |
|
|
1256 | coro->hv = 0; |
|
|
1257 | |
|
|
1258 | if (--coro->refcnt < 0) |
|
|
1259 | { |
758 | coro_state_destroy (coro); |
1260 | coro_state_destroy (aTHX_ coro); |
|
|
1261 | Safefree (coro); |
|
|
1262 | } |
759 | |
1263 | |
760 | return 0; |
1264 | return 0; |
761 | } |
1265 | } |
762 | |
1266 | |
763 | static int |
1267 | static int |
… | |
… | |
770 | return 0; |
1274 | return 0; |
771 | } |
1275 | } |
772 | |
1276 | |
773 | static MGVTBL coro_state_vtbl = { |
1277 | static MGVTBL coro_state_vtbl = { |
774 | 0, 0, 0, 0, |
1278 | 0, 0, 0, 0, |
775 | coro_state_clear, |
1279 | coro_state_free, |
776 | 0, |
1280 | 0, |
777 | #ifdef MGf_DUP |
1281 | #ifdef MGf_DUP |
778 | coro_state_dup, |
1282 | coro_state_dup, |
779 | #else |
1283 | #else |
780 | # define MGf_DUP 0 |
1284 | # define MGf_DUP 0 |
781 | #endif |
1285 | #endif |
782 | }; |
1286 | }; |
783 | |
1287 | |
784 | static struct coro * |
|
|
785 | SvSTATE (SV *coro) |
|
|
786 | { |
|
|
787 | HV *stash; |
|
|
788 | MAGIC *mg; |
|
|
789 | |
|
|
790 | if (SvROK (coro)) |
|
|
791 | coro = SvRV (coro); |
|
|
792 | |
|
|
793 | stash = SvSTASH (coro); |
|
|
794 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
795 | { |
|
|
796 | /* very slow, but rare, check */ |
|
|
797 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
798 | croak ("Coro::State object required"); |
|
|
799 | } |
|
|
800 | |
|
|
801 | mg = SvMAGIC (coro); |
|
|
802 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
803 | return (struct coro *)mg->mg_ptr; |
|
|
804 | } |
|
|
805 | |
|
|
806 | static void |
1288 | static void |
807 | prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags) |
1289 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
808 | { |
1290 | { |
809 | ta->prev = SvSTATE (prev); |
1291 | ta->prev = SvSTATE (prev_sv); |
810 | ta->next = SvSTATE (next); |
1292 | ta->next = SvSTATE (next_sv); |
811 | ta->flags = flags; |
1293 | TRANSFER_CHECK (*ta); |
812 | } |
1294 | } |
813 | |
1295 | |
814 | static void |
1296 | static void |
815 | api_transfer (SV *prev, SV *next, int flags) |
1297 | api_transfer (SV *prev_sv, SV *next_sv) |
816 | { |
1298 | { |
817 | dTHX; |
1299 | dTHX; |
818 | struct transfer_args ta; |
1300 | struct transfer_args ta; |
819 | |
1301 | |
820 | prepare_transfer (&ta, prev, next, flags); |
1302 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
821 | TRANSFER (ta); |
1303 | TRANSFER (ta); |
822 | } |
1304 | } |
823 | |
1305 | |
824 | /** Coro ********************************************************************/ |
1306 | /** Coro ********************************************************************/ |
825 | |
1307 | |
826 | #define PRIO_MAX 3 |
|
|
827 | #define PRIO_HIGH 1 |
|
|
828 | #define PRIO_NORMAL 0 |
|
|
829 | #define PRIO_LOW -1 |
|
|
830 | #define PRIO_IDLE -3 |
|
|
831 | #define PRIO_MIN -4 |
|
|
832 | |
|
|
833 | /* for Coro.pm */ |
|
|
834 | static GV *coro_current, *coro_idle; |
|
|
835 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
836 | static int coro_nready; |
|
|
837 | |
|
|
838 | static void |
1308 | static void |
839 | coro_enq (SV *sv) |
1309 | coro_enq (pTHX_ SV *coro_sv) |
840 | { |
1310 | { |
841 | int prio; |
|
|
842 | |
|
|
843 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
844 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
845 | |
|
|
846 | prio = SvSTATE (sv)->prio; |
|
|
847 | |
|
|
848 | av_push (coro_ready [prio - PRIO_MIN], sv); |
1311 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
849 | coro_nready++; |
|
|
850 | } |
1312 | } |
851 | |
1313 | |
852 | static SV * |
1314 | static SV * |
853 | coro_deq (int min_prio) |
1315 | coro_deq (pTHX_ int min_prio) |
854 | { |
1316 | { |
855 | int prio = PRIO_MAX - PRIO_MIN; |
1317 | int prio = PRIO_MAX - PRIO_MIN; |
856 | |
1318 | |
857 | min_prio -= PRIO_MIN; |
1319 | min_prio -= PRIO_MIN; |
858 | if (min_prio < 0) |
1320 | if (min_prio < 0) |
859 | min_prio = 0; |
1321 | min_prio = 0; |
860 | |
1322 | |
861 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1323 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
862 | if (AvFILLp (coro_ready [prio]) >= 0) |
1324 | if (AvFILLp (coro_ready [prio]) >= 0) |
863 | { |
|
|
864 | coro_nready--; |
|
|
865 | return av_shift (coro_ready [prio]); |
1325 | return av_shift (coro_ready [prio]); |
866 | } |
|
|
867 | |
1326 | |
868 | return 0; |
1327 | return 0; |
869 | } |
1328 | } |
870 | |
1329 | |
|
|
1330 | static int |
|
|
1331 | api_ready (SV *coro_sv) |
|
|
1332 | { |
|
|
1333 | dTHX; |
|
|
1334 | struct coro *coro; |
|
|
1335 | |
|
|
1336 | if (SvROK (coro_sv)) |
|
|
1337 | coro_sv = SvRV (coro_sv); |
|
|
1338 | |
|
|
1339 | coro = SvSTATE (coro_sv); |
|
|
1340 | |
|
|
1341 | if (coro->flags & CF_READY) |
|
|
1342 | return 0; |
|
|
1343 | |
|
|
1344 | coro->flags |= CF_READY; |
|
|
1345 | |
|
|
1346 | LOCK; |
|
|
1347 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1348 | ++coro_nready; |
|
|
1349 | UNLOCK; |
|
|
1350 | |
|
|
1351 | return 1; |
|
|
1352 | } |
|
|
1353 | |
|
|
1354 | static int |
|
|
1355 | api_is_ready (SV *coro_sv) |
|
|
1356 | { |
|
|
1357 | dTHX; |
|
|
1358 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1359 | } |
|
|
1360 | |
871 | static void |
1361 | static void |
872 | api_ready (SV *coro) |
1362 | prepare_schedule (pTHX_ struct transfer_args *ta) |
873 | { |
1363 | { |
874 | dTHX; |
1364 | SV *prev_sv, *next_sv; |
875 | |
1365 | |
876 | if (SvROK (coro)) |
1366 | for (;;) |
877 | coro = SvRV (coro); |
1367 | { |
|
|
1368 | LOCK; |
|
|
1369 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1370 | |
|
|
1371 | /* nothing to schedule: call the idle handler */ |
|
|
1372 | if (expect_false (!next_sv)) |
|
|
1373 | { |
|
|
1374 | dSP; |
|
|
1375 | UNLOCK; |
|
|
1376 | |
|
|
1377 | ENTER; |
|
|
1378 | SAVETMPS; |
|
|
1379 | |
|
|
1380 | PUSHMARK (SP); |
|
|
1381 | PUTBACK; |
|
|
1382 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1383 | |
|
|
1384 | FREETMPS; |
|
|
1385 | LEAVE; |
|
|
1386 | continue; |
|
|
1387 | } |
|
|
1388 | |
|
|
1389 | ta->next = SvSTATE (next_sv); |
|
|
1390 | |
|
|
1391 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1392 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1393 | { |
|
|
1394 | UNLOCK; |
|
|
1395 | SvREFCNT_dec (next_sv); |
|
|
1396 | /* coro_nready is already taken care of by destroy */ |
|
|
1397 | continue; |
|
|
1398 | } |
|
|
1399 | |
|
|
1400 | --coro_nready; |
|
|
1401 | UNLOCK; |
|
|
1402 | break; |
|
|
1403 | } |
|
|
1404 | |
|
|
1405 | /* free this only after the transfer */ |
|
|
1406 | prev_sv = SvRV (coro_current); |
|
|
1407 | ta->prev = SvSTATE (prev_sv); |
|
|
1408 | TRANSFER_CHECK (*ta); |
|
|
1409 | assert (ta->next->flags & CF_READY); |
|
|
1410 | ta->next->flags &= ~CF_READY; |
|
|
1411 | SvRV_set (coro_current, next_sv); |
878 | |
1412 | |
879 | LOCK; |
1413 | LOCK; |
880 | coro_enq (SvREFCNT_inc (coro)); |
1414 | free_coro_mortal (aTHX); |
|
|
1415 | coro_mortal = prev_sv; |
881 | UNLOCK; |
1416 | UNLOCK; |
882 | } |
1417 | } |
883 | |
1418 | |
884 | static void |
1419 | static void |
885 | prepare_schedule (struct transfer_args *ta) |
|
|
886 | { |
|
|
887 | SV *current, *prev, *next; |
|
|
888 | |
|
|
889 | current = GvSV (coro_current); |
|
|
890 | |
|
|
891 | for (;;) |
|
|
892 | { |
|
|
893 | LOCK; |
|
|
894 | next = coro_deq (PRIO_MIN); |
|
|
895 | UNLOCK; |
|
|
896 | |
|
|
897 | if (next) |
|
|
898 | break; |
|
|
899 | |
|
|
900 | { |
|
|
901 | dSP; |
|
|
902 | |
|
|
903 | ENTER; |
|
|
904 | SAVETMPS; |
|
|
905 | |
|
|
906 | PUSHMARK (SP); |
|
|
907 | PUTBACK; |
|
|
908 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
909 | |
|
|
910 | FREETMPS; |
|
|
911 | LEAVE; |
|
|
912 | } |
|
|
913 | } |
|
|
914 | |
|
|
915 | prev = SvRV (current); |
|
|
916 | SvRV (current) = next; |
|
|
917 | |
|
|
918 | /* free this only after the transfer */ |
|
|
919 | LOCK; |
|
|
920 | free_coro_mortal (); |
|
|
921 | UNLOCK; |
|
|
922 | coro_mortal = prev; |
|
|
923 | |
|
|
924 | ta->prev = SvSTATE (prev); |
|
|
925 | ta->next = SvSTATE (next); |
|
|
926 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
927 | } |
|
|
928 | |
|
|
929 | static void |
|
|
930 | prepare_cede (struct transfer_args *ta) |
1420 | prepare_cede (pTHX_ struct transfer_args *ta) |
931 | { |
1421 | { |
932 | LOCK; |
1422 | api_ready (coro_current); |
933 | coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
934 | UNLOCK; |
|
|
935 | |
|
|
936 | prepare_schedule (ta); |
1423 | prepare_schedule (aTHX_ ta); |
|
|
1424 | } |
|
|
1425 | |
|
|
1426 | static int |
|
|
1427 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1428 | { |
|
|
1429 | if (coro_nready) |
|
|
1430 | { |
|
|
1431 | SV *prev = SvRV (coro_current); |
|
|
1432 | prepare_schedule (aTHX_ ta); |
|
|
1433 | api_ready (prev); |
|
|
1434 | return 1; |
|
|
1435 | } |
|
|
1436 | else |
|
|
1437 | return 0; |
937 | } |
1438 | } |
938 | |
1439 | |
939 | static void |
1440 | static void |
940 | api_schedule (void) |
1441 | api_schedule (void) |
941 | { |
1442 | { |
942 | dTHX; |
1443 | dTHX; |
943 | struct transfer_args ta; |
1444 | struct transfer_args ta; |
944 | |
1445 | |
945 | prepare_schedule (&ta); |
1446 | prepare_schedule (aTHX_ &ta); |
946 | TRANSFER (ta); |
1447 | TRANSFER (ta); |
947 | } |
1448 | } |
948 | |
1449 | |
949 | static void |
1450 | static int |
950 | api_cede (void) |
1451 | api_cede (void) |
951 | { |
1452 | { |
952 | dTHX; |
1453 | dTHX; |
953 | struct transfer_args ta; |
1454 | struct transfer_args ta; |
954 | |
1455 | |
955 | prepare_cede (&ta); |
1456 | prepare_cede (aTHX_ &ta); |
|
|
1457 | |
|
|
1458 | if (expect_true (ta.prev != ta.next)) |
|
|
1459 | { |
956 | TRANSFER (ta); |
1460 | TRANSFER (ta); |
|
|
1461 | return 1; |
|
|
1462 | } |
|
|
1463 | else |
|
|
1464 | return 0; |
957 | } |
1465 | } |
958 | |
1466 | |
|
|
1467 | static int |
|
|
1468 | api_cede_notself (void) |
|
|
1469 | { |
|
|
1470 | dTHX; |
|
|
1471 | struct transfer_args ta; |
|
|
1472 | |
|
|
1473 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1474 | { |
|
|
1475 | TRANSFER (ta); |
|
|
1476 | return 1; |
|
|
1477 | } |
|
|
1478 | else |
|
|
1479 | return 0; |
|
|
1480 | } |
|
|
1481 | |
|
|
1482 | static void |
|
|
1483 | api_trace (SV *coro_sv, int flags) |
|
|
1484 | { |
|
|
1485 | dTHX; |
|
|
1486 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1487 | |
|
|
1488 | if (flags & CC_TRACE) |
|
|
1489 | { |
|
|
1490 | if (!coro->cctx) |
|
|
1491 | coro->cctx = cctx_new (); |
|
|
1492 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1493 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1494 | |
|
|
1495 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1496 | } |
|
|
1497 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1498 | { |
|
|
1499 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1500 | |
|
|
1501 | if (coro->flags & CF_RUNNING) |
|
|
1502 | PL_runops = RUNOPS_DEFAULT; |
|
|
1503 | else |
|
|
1504 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1505 | } |
|
|
1506 | } |
|
|
1507 | |
959 | MODULE = Coro::State PACKAGE = Coro::State |
1508 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
960 | |
1509 | |
961 | PROTOTYPES: DISABLE |
1510 | PROTOTYPES: DISABLE |
962 | |
1511 | |
963 | BOOT: |
1512 | BOOT: |
964 | { |
1513 | { |
965 | #ifdef USE_ITHREADS |
1514 | #ifdef USE_ITHREADS |
966 | MUTEX_INIT (&coro_mutex); |
1515 | MUTEX_INIT (&coro_mutex); |
967 | #endif |
1516 | #endif |
968 | BOOT_PAGESIZE; |
1517 | BOOT_PAGESIZE; |
969 | |
1518 | |
|
|
1519 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1520 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1521 | |
|
|
1522 | hv_sig = coro_get_hv ("SIG", TRUE); |
|
|
1523 | sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE); |
|
|
1524 | sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE); |
|
|
1525 | |
|
|
1526 | if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
1527 | if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
1528 | |
970 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1529 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
971 | |
1530 | |
972 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1531 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
973 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1532 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
974 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1533 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1534 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
975 | |
1535 | |
976 | main_mainstack = PL_mainstack; |
1536 | main_mainstack = PL_mainstack; |
|
|
1537 | main_top_env = PL_top_env; |
|
|
1538 | |
|
|
1539 | while (main_top_env->je_prev) |
|
|
1540 | main_top_env = main_top_env->je_prev; |
977 | |
1541 | |
978 | coroapi.ver = CORO_API_VERSION; |
1542 | coroapi.ver = CORO_API_VERSION; |
979 | coroapi.transfer = api_transfer; |
1543 | coroapi.transfer = api_transfer; |
980 | |
1544 | |
981 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1545 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
988 | struct coro *coro; |
1552 | struct coro *coro; |
989 | HV *hv; |
1553 | HV *hv; |
990 | int i; |
1554 | int i; |
991 | |
1555 | |
992 | Newz (0, coro, 1, struct coro); |
1556 | Newz (0, coro, 1, struct coro); |
993 | coro->args = newAV (); |
1557 | coro->args = newAV (); |
|
|
1558 | coro->flags = CF_NEW; |
994 | |
1559 | |
|
|
1560 | if (coro_first) coro_first->prev = coro; |
|
|
1561 | coro->next = coro_first; |
|
|
1562 | coro_first = coro; |
|
|
1563 | |
995 | hv = newHV (); |
1564 | coro->hv = hv = newHV (); |
996 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1565 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
997 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1566 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
998 | |
1567 | |
|
|
1568 | av_extend (coro->args, items - 1); |
999 | for (i = 1; i < items; i++) |
1569 | for (i = 1; i < items; i++) |
1000 | av_push (coro->args, newSVsv (ST (i))); |
1570 | av_push (coro->args, newSVsv (ST (i))); |
1001 | } |
1571 | } |
1002 | OUTPUT: |
1572 | OUTPUT: |
1003 | RETVAL |
1573 | RETVAL |
1004 | |
1574 | |
|
|
1575 | # these not obviously related functions are all rolled into the same xs |
|
|
1576 | # function to increase chances that they all will call transfer with the same |
|
|
1577 | # stack offset |
1005 | void |
1578 | void |
1006 | _set_stacklevel (...) |
1579 | _set_stacklevel (...) |
1007 | ALIAS: |
1580 | ALIAS: |
1008 | Coro::State::transfer = 1 |
1581 | Coro::State::transfer = 1 |
1009 | Coro::schedule = 2 |
1582 | Coro::schedule = 2 |
1010 | Coro::cede = 3 |
1583 | Coro::cede = 3 |
1011 | Coro::Cont::yield = 4 |
1584 | Coro::cede_notself = 4 |
|
|
1585 | Coro::Event::next = 5 |
|
|
1586 | Coro::Event::next_cancel = 6 |
1012 | CODE: |
1587 | PPCODE: |
1013 | { |
1588 | { |
1014 | struct transfer_args ta; |
1589 | struct transfer_args ta; |
|
|
1590 | int again = 0; |
1015 | |
1591 | |
1016 | switch (ix) |
1592 | do |
1017 | { |
1593 | { |
1018 | case 0: |
1594 | switch (ix) |
1019 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1020 | ta.next = 0; |
|
|
1021 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1022 | break; |
|
|
1023 | |
|
|
1024 | case 1: |
|
|
1025 | if (items != 3) |
|
|
1026 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
|
|
1027 | |
|
|
1028 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
|
|
1029 | break; |
|
|
1030 | |
|
|
1031 | case 2: |
|
|
1032 | prepare_schedule (&ta); |
|
|
1033 | break; |
|
|
1034 | |
|
|
1035 | case 3: |
|
|
1036 | prepare_cede (&ta); |
|
|
1037 | break; |
|
|
1038 | |
|
|
1039 | case 4: |
|
|
1040 | { |
1595 | { |
1041 | SV *yieldstack; |
1596 | case 0: |
1042 | SV *sv; |
1597 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1043 | AV *defav = GvAV (PL_defgv); |
1598 | ta.next = 0; |
|
|
1599 | break; |
1044 | |
1600 | |
1045 | yieldstack = *hv_fetch ( |
1601 | case 1: |
1046 | (HV *)SvRV (GvSV (coro_current)), |
1602 | if (items != 2) |
1047 | "yieldstack", sizeof ("yieldstack") - 1, |
1603 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1604 | |
|
|
1605 | prepare_transfer (aTHX_ &ta, ST(0), ST(1)); |
|
|
1606 | break; |
|
|
1607 | |
|
|
1608 | case 2: |
|
|
1609 | prepare_schedule (aTHX_ &ta); |
|
|
1610 | break; |
|
|
1611 | |
|
|
1612 | case 3: |
|
|
1613 | prepare_cede (aTHX_ &ta); |
|
|
1614 | break; |
|
|
1615 | |
|
|
1616 | case 4: |
|
|
1617 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1618 | XSRETURN_EMPTY; |
|
|
1619 | |
|
|
1620 | break; |
|
|
1621 | |
|
|
1622 | case 5: |
|
|
1623 | case 6: |
|
|
1624 | if (items != 1) |
|
|
1625 | croak ("Coro::Event::next (watcher) expects one argument, not %d", items); |
|
|
1626 | |
1048 | 0 |
1627 | { |
|
|
1628 | SV *ev = coroapi.coro_event_next (ST (0), ix == 6, GIMME_V != G_VOID); |
|
|
1629 | |
|
|
1630 | if (ev) |
|
|
1631 | { |
|
|
1632 | if (GIMME_V != G_VOID) |
|
|
1633 | { |
|
|
1634 | XPUSHs (ev); |
|
|
1635 | XSRETURN (1); |
|
|
1636 | } |
|
|
1637 | else |
|
|
1638 | XSRETURN_EMPTY; |
|
|
1639 | } |
1049 | ); |
1640 | } |
1050 | |
1641 | |
1051 | /* set up @_ -- ugly */ |
1642 | prepare_schedule (aTHX_ &ta); |
1052 | av_clear (defav); |
|
|
1053 | av_fill (defav, items - 1); |
|
|
1054 | while (items--) |
|
|
1055 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1056 | |
|
|
1057 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1058 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1059 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1060 | ta.flags = 0; |
1643 | again = 1; |
1061 | SvREFCNT_dec (sv); |
1644 | break; |
1062 | } |
1645 | } |
1063 | break; |
|
|
1064 | |
1646 | |
|
|
1647 | /* our caller, entersub, caches *only* this value */ |
|
|
1648 | ta.prev->gimme = GIMME_V == G_VOID ? 0 |
|
|
1649 | : GIMME_V == G_SCALAR ? 1 |
|
|
1650 | : 2; |
|
|
1651 | |
|
|
1652 | /* we need to save all local variables, as we might execute a different coroutine when transfer returns */ |
|
|
1653 | sp += 2; /* save args */ |
|
|
1654 | EXTEND (SP, 4); |
|
|
1655 | PUSHs ((SV *)(intptr_t)items); |
|
|
1656 | PUSHs ((SV *)(intptr_t)ix); |
|
|
1657 | PUSHs ((SV *)(intptr_t)ax); |
|
|
1658 | PUSHs ((SV *)(intptr_t)again); |
|
|
1659 | PUTBACK; |
|
|
1660 | BARRIER; |
|
|
1661 | TRANSFER (ta); |
|
|
1662 | BARRIER; |
|
|
1663 | SPAGAIN; |
|
|
1664 | again = (intptr_t)POPs; |
|
|
1665 | ax = (intptr_t)POPs; |
|
|
1666 | ix = (intptr_t)POPs; |
|
|
1667 | items = (intptr_t)POPs; |
|
|
1668 | sp -= 2; /* restore args */ |
1065 | } |
1669 | } |
|
|
1670 | while (again); |
1066 | |
1671 | |
1067 | TRANSFER (ta); |
1672 | if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev)) |
1068 | } |
1673 | XSRETURN_YES; |
1069 | |
1674 | |
1070 | void |
1675 | XSRETURN_EMPTY; /* not understood why this is necessary, likely some stack handling bug */ |
1071 | _clone_state_from (SV *dst, SV *src) |
1676 | } |
|
|
1677 | |
|
|
1678 | bool |
|
|
1679 | _destroy (SV *coro_sv) |
1072 | CODE: |
1680 | CODE: |
1073 | { |
1681 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1074 | struct coro *coro_src = SvSTATE (src); |
1682 | OUTPUT: |
1075 | |
1683 | RETVAL |
1076 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1077 | |
|
|
1078 | ++coro_src->refcnt; |
|
|
1079 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1080 | } |
|
|
1081 | |
1684 | |
1082 | void |
1685 | void |
1083 | _exit (code) |
1686 | _exit (code) |
1084 | int code |
1687 | int code |
1085 | PROTOTYPE: $ |
1688 | PROTOTYPE: $ |
1086 | CODE: |
1689 | CODE: |
1087 | _exit (code); |
1690 | _exit (code); |
1088 | |
1691 | |
1089 | int |
1692 | int |
|
|
1693 | cctx_stacksize (int new_stacksize = 0) |
|
|
1694 | CODE: |
|
|
1695 | RETVAL = coro_stacksize; |
|
|
1696 | if (new_stacksize) |
|
|
1697 | coro_stacksize = new_stacksize; |
|
|
1698 | OUTPUT: |
|
|
1699 | RETVAL |
|
|
1700 | |
|
|
1701 | int |
1090 | cctx_count () |
1702 | cctx_count () |
1091 | CODE: |
1703 | CODE: |
1092 | RETVAL = cctx_count; |
1704 | RETVAL = cctx_count; |
1093 | OUTPUT: |
1705 | OUTPUT: |
1094 | RETVAL |
1706 | RETVAL |
1095 | |
1707 | |
1096 | int |
1708 | int |
1097 | cctx_idle () |
1709 | cctx_idle () |
1098 | CODE: |
1710 | CODE: |
1099 | RETVAL = cctx_idle; |
1711 | RETVAL = cctx_idle[0] + cctx_idle[1] + cctx_idle[2]; |
1100 | OUTPUT: |
1712 | OUTPUT: |
1101 | RETVAL |
1713 | RETVAL |
1102 | |
1714 | |
|
|
1715 | void |
|
|
1716 | list () |
|
|
1717 | PPCODE: |
|
|
1718 | { |
|
|
1719 | struct coro *coro; |
|
|
1720 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1721 | if (coro->hv) |
|
|
1722 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1723 | } |
|
|
1724 | |
|
|
1725 | void |
|
|
1726 | call (Coro::State coro, SV *coderef) |
|
|
1727 | ALIAS: |
|
|
1728 | eval = 1 |
|
|
1729 | CODE: |
|
|
1730 | { |
|
|
1731 | if (coro->mainstack) |
|
|
1732 | { |
|
|
1733 | struct coro temp; |
|
|
1734 | |
|
|
1735 | if (!(coro->flags & CF_RUNNING)) |
|
|
1736 | { |
|
|
1737 | save_perl (aTHX_ &temp); |
|
|
1738 | load_perl (aTHX_ coro); |
|
|
1739 | } |
|
|
1740 | |
|
|
1741 | { |
|
|
1742 | dSP; |
|
|
1743 | ENTER; |
|
|
1744 | SAVETMPS; |
|
|
1745 | PUTBACK; |
|
|
1746 | PUSHSTACK; |
|
|
1747 | PUSHMARK (SP); |
|
|
1748 | |
|
|
1749 | if (ix) |
|
|
1750 | eval_sv (coderef, 0); |
|
|
1751 | else |
|
|
1752 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1753 | |
|
|
1754 | POPSTACK; |
|
|
1755 | FREETMPS; |
|
|
1756 | LEAVE; |
|
|
1757 | } |
|
|
1758 | |
|
|
1759 | if (!(coro->flags & CF_RUNNING)) |
|
|
1760 | { |
|
|
1761 | save_perl (aTHX_ coro); |
|
|
1762 | load_perl (aTHX_ &temp); |
|
|
1763 | } |
|
|
1764 | } |
|
|
1765 | } |
|
|
1766 | |
|
|
1767 | SV * |
|
|
1768 | is_ready (Coro::State coro) |
|
|
1769 | PROTOTYPE: $ |
|
|
1770 | ALIAS: |
|
|
1771 | is_ready = CF_READY |
|
|
1772 | is_running = CF_RUNNING |
|
|
1773 | is_new = CF_NEW |
|
|
1774 | is_destroyed = CF_DESTROYED |
|
|
1775 | CODE: |
|
|
1776 | RETVAL = boolSV (coro->flags & ix); |
|
|
1777 | OUTPUT: |
|
|
1778 | RETVAL |
|
|
1779 | |
|
|
1780 | void |
|
|
1781 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1782 | |
|
|
1783 | SV * |
|
|
1784 | has_stack (Coro::State coro) |
|
|
1785 | PROTOTYPE: $ |
|
|
1786 | CODE: |
|
|
1787 | RETVAL = boolSV (!!coro->cctx); |
|
|
1788 | OUTPUT: |
|
|
1789 | RETVAL |
|
|
1790 | |
|
|
1791 | int |
|
|
1792 | is_traced (Coro::State coro) |
|
|
1793 | PROTOTYPE: $ |
|
|
1794 | CODE: |
|
|
1795 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1796 | OUTPUT: |
|
|
1797 | RETVAL |
|
|
1798 | |
|
|
1799 | IV |
|
|
1800 | rss (Coro::State coro) |
|
|
1801 | PROTOTYPE: $ |
|
|
1802 | ALIAS: |
|
|
1803 | usecount = 1 |
|
|
1804 | CODE: |
|
|
1805 | switch (ix) |
|
|
1806 | { |
|
|
1807 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
1808 | case 1: RETVAL = coro->usecount; break; |
|
|
1809 | } |
|
|
1810 | OUTPUT: |
|
|
1811 | RETVAL |
|
|
1812 | |
|
|
1813 | |
1103 | MODULE = Coro::State PACKAGE = Coro |
1814 | MODULE = Coro::State PACKAGE = Coro |
1104 | |
1815 | |
1105 | BOOT: |
1816 | BOOT: |
1106 | { |
1817 | { |
1107 | int i; |
1818 | int i; |
1108 | |
1819 | |
|
|
1820 | sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1821 | sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1822 | av_async_pool = coro_get_av ("Coro::async_pool", TRUE); |
|
|
1823 | |
|
|
1824 | coro_current = coro_get_sv ("Coro::current", FALSE); |
|
|
1825 | SvREADONLY_on (coro_current); |
|
|
1826 | |
1109 | coro_stash = gv_stashpv ("Coro", TRUE); |
1827 | coro_stash = gv_stashpv ("Coro", TRUE); |
1110 | |
1828 | |
1111 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1829 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1112 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1830 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1113 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1831 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1114 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1832 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1115 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1833 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1116 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1834 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1117 | |
1835 | |
1118 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1119 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1120 | |
|
|
1121 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1836 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1122 | coro_ready[i] = newAV (); |
1837 | coro_ready[i] = newAV (); |
1123 | |
1838 | |
1124 | { |
1839 | { |
1125 | SV *sv = perl_get_sv("Coro::API", 1); |
1840 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
1841 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1126 | |
1842 | |
1127 | coroapi.schedule = api_schedule; |
1843 | coroapi.schedule = api_schedule; |
1128 | coroapi.cede = api_cede; |
1844 | coroapi.cede = api_cede; |
|
|
1845 | coroapi.cede_notself = api_cede_notself; |
1129 | coroapi.ready = api_ready; |
1846 | coroapi.ready = api_ready; |
|
|
1847 | coroapi.is_ready = api_is_ready; |
1130 | coroapi.nready = &coro_nready; |
1848 | coroapi.nready = &coro_nready; |
1131 | coroapi.current = coro_current; |
1849 | coroapi.current = coro_current; |
1132 | |
1850 | |
1133 | GCoroAPI = &coroapi; |
1851 | GCoroAPI = &coroapi; |
1134 | sv_setiv (sv, (IV)&coroapi); |
1852 | sv_setiv (sv, (IV)&coroapi); |
1135 | SvREADONLY_on (sv); |
1853 | SvREADONLY_on (sv); |
1136 | } |
1854 | } |
1137 | } |
1855 | } |
|
|
1856 | |
|
|
1857 | void |
|
|
1858 | _set_current (SV *current) |
|
|
1859 | PROTOTYPE: $ |
|
|
1860 | CODE: |
|
|
1861 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1862 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1138 | |
1863 | |
1139 | int |
1864 | int |
1140 | prio (Coro::State coro, int newprio = 0) |
1865 | prio (Coro::State coro, int newprio = 0) |
1141 | ALIAS: |
1866 | ALIAS: |
1142 | nice = 1 |
1867 | nice = 1 |
… | |
… | |
1145 | RETVAL = coro->prio; |
1870 | RETVAL = coro->prio; |
1146 | |
1871 | |
1147 | if (items > 1) |
1872 | if (items > 1) |
1148 | { |
1873 | { |
1149 | if (ix) |
1874 | if (ix) |
1150 | newprio += coro->prio; |
1875 | newprio = coro->prio - newprio; |
1151 | |
1876 | |
1152 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1877 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1153 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1878 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1154 | |
1879 | |
1155 | coro->prio = newprio; |
1880 | coro->prio = newprio; |
1156 | } |
1881 | } |
1157 | } |
1882 | } |
|
|
1883 | OUTPUT: |
|
|
1884 | RETVAL |
1158 | |
1885 | |
1159 | void |
1886 | SV * |
1160 | ready (SV *self) |
1887 | ready (SV *self) |
1161 | PROTOTYPE: $ |
1888 | PROTOTYPE: $ |
1162 | CODE: |
1889 | CODE: |
1163 | api_ready (self); |
1890 | RETVAL = boolSV (api_ready (self)); |
|
|
1891 | OUTPUT: |
|
|
1892 | RETVAL |
1164 | |
1893 | |
1165 | int |
1894 | int |
1166 | nready (...) |
1895 | nready (...) |
1167 | PROTOTYPE: |
1896 | PROTOTYPE: |
1168 | CODE: |
1897 | CODE: |
1169 | RETVAL = coro_nready; |
1898 | RETVAL = coro_nready; |
1170 | OUTPUT: |
1899 | OUTPUT: |
1171 | RETVAL |
1900 | RETVAL |
1172 | |
1901 | |
|
|
1902 | void |
|
|
1903 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
1904 | PROTOTYPE: $;$ |
|
|
1905 | CODE: |
|
|
1906 | SvREFCNT_dec (self->throw); |
|
|
1907 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1908 | |
|
|
1909 | # for async_pool speedup |
|
|
1910 | void |
|
|
1911 | _pool_1 (SV *cb) |
|
|
1912 | CODE: |
|
|
1913 | { |
|
|
1914 | struct coro *coro = SvSTATE (coro_current); |
|
|
1915 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1916 | AV *defav = GvAV (PL_defgv); |
|
|
1917 | SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); |
|
|
1918 | AV *invoke_av; |
|
|
1919 | int i, len; |
|
|
1920 | |
|
|
1921 | if (!invoke) |
|
|
1922 | croak ("\3async_pool terminate\2\n"); |
|
|
1923 | |
|
|
1924 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1925 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1926 | |
|
|
1927 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1928 | newSVpvn (strpair ("[async_pool]")), 0); |
|
|
1929 | |
|
|
1930 | invoke_av = (AV *)SvRV (invoke); |
|
|
1931 | len = av_len (invoke_av); |
|
|
1932 | |
|
|
1933 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1934 | |
|
|
1935 | if (len > 0) |
|
|
1936 | { |
|
|
1937 | av_fill (defav, len - 1); |
|
|
1938 | for (i = 0; i < len; ++i) |
|
|
1939 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1940 | } |
|
|
1941 | |
|
|
1942 | SvREFCNT_dec (invoke); |
|
|
1943 | } |
|
|
1944 | |
|
|
1945 | void |
|
|
1946 | _pool_2 (SV *cb) |
|
|
1947 | CODE: |
|
|
1948 | { |
|
|
1949 | struct coro *coro = SvSTATE (coro_current); |
|
|
1950 | |
|
|
1951 | sv_setsv (cb, &PL_sv_undef); |
|
|
1952 | |
|
|
1953 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1954 | coro->saved_deffh = 0; |
|
|
1955 | |
|
|
1956 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1957 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1958 | croak ("\3async_pool terminate\2\n"); |
|
|
1959 | |
|
|
1960 | av_clear (GvAV (PL_defgv)); |
|
|
1961 | hv_store ((HV *)SvRV (coro_current), strpair ("desc"), |
|
|
1962 | newSVpvn (strpair ("[async_pool idle]")), 0); |
|
|
1963 | |
|
|
1964 | coro->prio = 0; |
|
|
1965 | |
|
|
1966 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1967 | api_trace (coro_current, 0); |
|
|
1968 | |
|
|
1969 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1970 | } |
|
|
1971 | |
|
|
1972 | |
1173 | MODULE = Coro::State PACKAGE = Coro::AIO |
1973 | MODULE = Coro::State PACKAGE = Coro::AIO |
1174 | |
1974 | |
1175 | SV * |
1975 | SV * |
1176 | _get_state () |
1976 | _get_state () |
1177 | CODE: |
1977 | CODE: |
1178 | { |
1978 | { |
1179 | struct { |
1979 | struct io_state *data; |
1180 | int errorno; |
|
|
1181 | int laststype; |
|
|
1182 | int laststatval; |
|
|
1183 | Stat_t statcache; |
|
|
1184 | } data; |
|
|
1185 | |
1980 | |
|
|
1981 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1982 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1983 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1984 | SvPOK_only (RETVAL); |
|
|
1985 | |
1186 | data.errorno = errno; |
1986 | data->errorno = errno; |
1187 | data.laststype = PL_laststype; |
1987 | data->laststype = PL_laststype; |
1188 | data.laststatval = PL_laststatval; |
1988 | data->laststatval = PL_laststatval; |
1189 | data.statcache = PL_statcache; |
1989 | data->statcache = PL_statcache; |
1190 | |
|
|
1191 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1192 | } |
1990 | } |
1193 | OUTPUT: |
1991 | OUTPUT: |
1194 | RETVAL |
1992 | RETVAL |
1195 | |
1993 | |
1196 | void |
1994 | void |
1197 | _set_state (char *data_) |
1995 | _set_state (char *data_) |
1198 | PROTOTYPE: $ |
1996 | PROTOTYPE: $ |
1199 | CODE: |
1997 | CODE: |
1200 | { |
1998 | { |
1201 | struct { |
1999 | struct io_state *data = (void *)data_; |
1202 | int errorno; |
|
|
1203 | int laststype; |
|
|
1204 | int laststatval; |
|
|
1205 | Stat_t statcache; |
|
|
1206 | } *data = (void *)data_; |
|
|
1207 | |
2000 | |
1208 | errno = data->errorno; |
2001 | errno = data->errorno; |
1209 | PL_laststype = data->laststype; |
2002 | PL_laststype = data->laststype; |
1210 | PL_laststatval = data->laststatval; |
2003 | PL_laststatval = data->laststatval; |
1211 | PL_statcache = data->statcache; |
2004 | PL_statcache = data->statcache; |
1212 | } |
2005 | } |
|
|
2006 | |