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 |
2 | |
4 | |
3 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
4 | #include "perl.h" |
6 | #include "perl.h" |
5 | #include "XSUB.h" |
7 | #include "XSUB.h" |
6 | |
8 | |
7 | #include "patchlevel.h" |
9 | #include "patchlevel.h" |
8 | |
10 | |
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> |
11 | #include <stdio.h> |
41 | #include <errno.h> |
12 | #include <errno.h> |
42 | |
13 | #include <assert.h> |
43 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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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 | |
14 | |
51 | #ifdef HAVE_MMAP |
15 | #ifdef HAVE_MMAP |
52 | # include <unistd.h> |
16 | # include <unistd.h> |
53 | # include <sys/mman.h> |
17 | # include <sys/mman.h> |
54 | # ifndef MAP_ANONYMOUS |
18 | # ifndef MAP_ANONYMOUS |
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69 | #else |
33 | #else |
70 | # define PAGESIZE 0 |
34 | # define PAGESIZE 0 |
71 | # define BOOT_PAGESIZE (void)0 |
35 | # define BOOT_PAGESIZE (void)0 |
72 | #endif |
36 | #endif |
73 | |
37 | |
74 | /* The next macro should declare a variable stacklevel that contains and approximation |
38 | #if CORO_USE_VALGRIND |
75 | * to the current C stack pointer. Its property is that it changes with each call |
39 | # include <valgrind/valgrind.h> |
76 | * and should be unique. */ |
40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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41 | #else |
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42 | # define REGISTER_STACK(cctx,start,end) |
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43 | #endif |
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44 | |
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45 | /* the maximum number of idle cctx that will be pooled */ |
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46 | #define MAX_IDLE_CCTX 8 |
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47 | |
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48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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49 | (PERL_REVISION > (a) \ |
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50 | || (PERL_REVISION == (a) \ |
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51 | && (PERL_VERSION > (b) \ |
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52 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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53 | |
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54 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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55 | # ifndef PL_ppaddr |
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56 | # define PL_ppaddr ppaddr |
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57 | # endif |
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58 | # ifndef call_sv |
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59 | # define call_sv perl_call_sv |
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60 | # endif |
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61 | # ifndef get_sv |
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62 | # define get_sv perl_get_sv |
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63 | # endif |
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64 | # ifndef get_cv |
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65 | # define get_cv perl_get_cv |
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66 | # endif |
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67 | # ifndef IS_PADGV |
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68 | # define IS_PADGV(v) 0 |
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69 | # endif |
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70 | # ifndef IS_PADCONST |
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71 | # define IS_PADCONST(v) 0 |
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72 | # endif |
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73 | #endif |
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74 | |
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75 | /* 5.8.7 */ |
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76 | #ifndef SvRV_set |
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77 | # define SvRV_set(s,v) SvRV(s) = (v) |
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78 | #endif |
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79 | |
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80 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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81 | # undef CORO_STACKGUARD |
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82 | #endif |
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83 | |
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84 | #ifndef CORO_STACKGUARD |
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85 | # define CORO_STACKGUARD 0 |
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86 | #endif |
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87 | |
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88 | /* prefer perl internal functions over our own? */ |
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89 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
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90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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91 | #endif |
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92 | |
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93 | /* The next macros try to return the current stack pointer, in an as |
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94 | * portable way as possible. */ |
77 | #define dSTACKLEVEL int stacklevel |
95 | #define dSTACKLEVEL volatile char stacklevel |
78 | #define STACKLEVEL ((void *)&stacklevel) |
96 | #define STACKLEVEL ((void *)&stacklevel) |
79 | |
97 | |
80 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
81 | |
99 | |
82 | #if __GNUC__ >= 3 |
100 | #if __GNUC__ >= 3 |
83 | # define attribute(x) __attribute__(x) |
101 | # define attribute(x) __attribute__(x) |
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102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
84 | #else |
103 | #else |
85 | # define attribute(x) |
104 | # define attribute(x) |
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105 | # define BARRIER |
86 | #endif |
106 | #endif |
87 | |
107 | |
88 | #define NOINLINE attribute ((noinline)) |
108 | #define NOINLINE attribute ((noinline)) |
89 | |
109 | |
90 | #include "CoroAPI.h" |
110 | #include "CoroAPI.h" |
91 | |
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92 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
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93 | |
111 | |
94 | #ifdef USE_ITHREADS |
112 | #ifdef USE_ITHREADS |
95 | static perl_mutex coro_mutex; |
113 | static perl_mutex coro_mutex; |
96 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
114 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
97 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
115 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
98 | #else |
116 | #else |
99 | # define LOCK (void)0 |
117 | # define LOCK (void)0 |
100 | # define UNLOCK (void)0 |
118 | # define UNLOCK (void)0 |
101 | #endif |
119 | #endif |
102 | |
120 | |
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121 | /* helper storage struct for Coro::AIO */ |
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122 | struct io_state |
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123 | { |
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124 | int errorno; |
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125 | I32 laststype; |
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126 | int laststatval; |
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127 | Stat_t statcache; |
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128 | }; |
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129 | |
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130 | static size_t coro_stacksize = CORO_STACKSIZE; |
103 | static struct CoroAPI coroapi; |
131 | static struct CoroAPI coroapi; |
104 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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133 | static JMPENV *main_top_env; |
105 | static HV *coro_state_stash, *coro_stash; |
134 | static HV *coro_state_stash, *coro_stash; |
106 | static SV *coro_mortal; /* will be freed after next transfer */ |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
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136 | |
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137 | /* async_pool helper stuff */ |
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138 | static SV *sv_pool_rss; |
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139 | static SV *sv_pool_size; |
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140 | static AV *av_async_pool; |
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141 | |
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142 | static struct coro_cctx *cctx_first; |
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143 | static int cctx_count, cctx_idle; |
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144 | |
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145 | enum { |
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146 | CC_MAPPED = 0x01, |
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147 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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148 | CC_TRACE = 0x04, |
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149 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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150 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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151 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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152 | }; |
107 | |
153 | |
108 | /* this is a structure representing a c-level coroutine */ |
154 | /* this is a structure representing a c-level coroutine */ |
109 | typedef struct coro_cctx { |
155 | typedef struct coro_cctx { |
110 | struct coro_cctx *next; |
156 | struct coro_cctx *next; |
111 | |
157 | |
112 | /* the stack */ |
158 | /* the stack */ |
113 | void *sptr; |
159 | void *sptr; |
114 | long ssize; /* positive == mmap, otherwise malloc */ |
160 | size_t ssize; |
115 | |
161 | |
116 | /* cpu state */ |
162 | /* cpu state */ |
117 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
163 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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164 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
118 | JMPENV *top_env; |
165 | JMPENV *top_env; |
119 | coro_context cctx; |
166 | coro_context cctx; |
120 | |
167 | |
121 | #if USE_VALGRIND |
168 | #if CORO_USE_VALGRIND |
122 | int valgrind_id; |
169 | int valgrind_id; |
123 | #endif |
170 | #endif |
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171 | unsigned char flags; |
124 | } coro_cctx; |
172 | } coro_cctx; |
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173 | |
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174 | enum { |
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175 | CF_RUNNING = 0x0001, /* coroutine is running */ |
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176 | CF_READY = 0x0002, /* coroutine is ready */ |
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177 | CF_NEW = 0x0004, /* has never been switched to */ |
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178 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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179 | }; |
125 | |
180 | |
126 | /* this is a structure representing a perl-level coroutine */ |
181 | /* this is a structure representing a perl-level coroutine */ |
127 | struct coro { |
182 | struct coro { |
128 | /* the c coroutine allocated to this perl coroutine, if any */ |
183 | /* the c coroutine allocated to this perl coroutine, if any */ |
129 | coro_cctx *cctx; |
184 | coro_cctx *cctx; |
130 | |
185 | |
131 | /* data associated with this coroutine (initial args) */ |
186 | /* data associated with this coroutine (initial args) */ |
132 | AV *args; |
187 | AV *args; |
133 | int refcnt; |
188 | int refcnt; |
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189 | int save; /* CORO_SAVE flags */ |
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190 | int flags; /* CF_ flags */ |
134 | |
191 | |
135 | /* optionally saved, might be zero */ |
192 | /* optionally saved, might be zero */ |
136 | AV *defav; |
193 | AV *defav; /* @_ */ |
137 | SV *defsv; |
194 | SV *defsv; /* $_ */ |
138 | SV *errsv; |
195 | SV *errsv; /* $@ */ |
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196 | GV *deffh; /* default filehandle */ |
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197 | SV *irssv; /* $/ */ |
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198 | SV *irssv_sv; /* real $/ cache */ |
139 | |
199 | |
140 | /* saved global state not related to stacks */ |
200 | #define VAR(name,type) type name; |
141 | U8 dowarn; |
201 | # include "state.h" |
142 | I32 in_eval; |
202 | #undef VAR |
143 | |
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144 | /* the stacks and related info (callchain etc..) */ |
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145 | PERL_SI *curstackinfo; |
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146 | AV *curstack; |
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147 | AV *mainstack; |
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148 | SV **stack_sp; |
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149 | OP *op; |
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150 | SV **curpad; |
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151 | AV *comppad; |
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152 | CV *compcv; |
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153 | SV **stack_base; |
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154 | SV **stack_max; |
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155 | SV **tmps_stack; |
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156 | I32 tmps_floor; |
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157 | I32 tmps_ix; |
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158 | I32 tmps_max; |
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159 | I32 *markstack; |
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160 | I32 *markstack_ptr; |
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161 | I32 *markstack_max; |
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162 | I32 *scopestack; |
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163 | I32 scopestack_ix; |
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164 | I32 scopestack_max; |
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165 | ANY *savestack; |
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166 | I32 savestack_ix; |
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167 | I32 savestack_max; |
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168 | OP **retstack; |
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169 | I32 retstack_ix; |
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170 | I32 retstack_max; |
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171 | PMOP *curpm; |
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172 | COP *curcop; |
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173 | |
203 | |
174 | /* coro process data */ |
204 | /* coro process data */ |
175 | int prio; |
205 | int prio; |
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206 | |
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207 | /* linked list */ |
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208 | struct coro *next, *prev; |
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209 | HV *hv; /* the perl hash associated with this coro, if any */ |
176 | }; |
210 | }; |
177 | |
211 | |
178 | typedef struct coro *Coro__State; |
212 | typedef struct coro *Coro__State; |
179 | typedef struct coro *Coro__State_or_hashref; |
213 | typedef struct coro *Coro__State_or_hashref; |
180 | |
214 | |
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215 | /** Coro ********************************************************************/ |
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216 | |
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217 | #define PRIO_MAX 3 |
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218 | #define PRIO_HIGH 1 |
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219 | #define PRIO_NORMAL 0 |
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220 | #define PRIO_LOW -1 |
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221 | #define PRIO_IDLE -3 |
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222 | #define PRIO_MIN -4 |
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223 | |
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224 | /* for Coro.pm */ |
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225 | static SV *coro_current; |
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226 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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227 | static int coro_nready; |
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228 | static struct coro *coro_first; |
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229 | |
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230 | /** lowlevel stuff **********************************************************/ |
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231 | |
181 | static AV * |
232 | static AV * |
182 | coro_clone_padlist (CV *cv) |
233 | coro_clone_padlist (pTHX_ CV *cv) |
183 | { |
234 | { |
184 | AV *padlist = CvPADLIST (cv); |
235 | AV *padlist = CvPADLIST (cv); |
185 | AV *newpadlist, *newpad; |
236 | AV *newpadlist, *newpad; |
186 | |
237 | |
187 | newpadlist = newAV (); |
238 | newpadlist = newAV (); |
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199 | |
250 | |
200 | return newpadlist; |
251 | return newpadlist; |
201 | } |
252 | } |
202 | |
253 | |
203 | static void |
254 | static void |
204 | free_padlist (AV *padlist) |
255 | free_padlist (pTHX_ AV *padlist) |
205 | { |
256 | { |
206 | /* may be during global destruction */ |
257 | /* may be during global destruction */ |
207 | if (SvREFCNT (padlist)) |
258 | if (SvREFCNT (padlist)) |
208 | { |
259 | { |
209 | I32 i = AvFILLp (padlist); |
260 | I32 i = AvFILLp (padlist); |
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230 | AV *padlist; |
281 | AV *padlist; |
231 | AV *av = (AV *)mg->mg_obj; |
282 | AV *av = (AV *)mg->mg_obj; |
232 | |
283 | |
233 | /* casting is fun. */ |
284 | /* casting is fun. */ |
234 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
285 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
235 | free_padlist (padlist); |
286 | free_padlist (aTHX_ padlist); |
236 | |
287 | |
237 | SvREFCNT_dec (av); |
288 | SvREFCNT_dec (av); |
238 | |
289 | |
239 | return 0; |
290 | return 0; |
240 | } |
291 | } |
241 | |
292 | |
242 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
293 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
243 | |
294 | |
244 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
295 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
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296 | |
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297 | #define CORO_MAGIC(cv) \ |
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298 | SvMAGIC (cv) \ |
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299 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
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300 | ? SvMAGIC (cv) \ |
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301 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
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302 | : 0 |
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303 | |
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304 | static struct coro * |
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305 | SvSTATE_ (pTHX_ SV *coro) |
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306 | { |
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307 | HV *stash; |
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308 | MAGIC *mg; |
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309 | |
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310 | if (SvROK (coro)) |
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311 | coro = SvRV (coro); |
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312 | |
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313 | stash = SvSTASH (coro); |
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314 | if (stash != coro_stash && stash != coro_state_stash) |
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315 | { |
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316 | /* very slow, but rare, check */ |
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317 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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318 | croak ("Coro::State object required"); |
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319 | } |
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320 | |
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321 | mg = CORO_MAGIC (coro); |
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322 | return (struct coro *)mg->mg_ptr; |
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323 | } |
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324 | |
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325 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
245 | |
326 | |
246 | /* the next two functions merely cache the padlists */ |
327 | /* the next two functions merely cache the padlists */ |
247 | static void |
328 | static void |
248 | get_padlist (CV *cv) |
329 | get_padlist (pTHX_ CV *cv) |
249 | { |
330 | { |
250 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
331 | MAGIC *mg = CORO_MAGIC (cv); |
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332 | AV *av; |
251 | |
333 | |
252 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
334 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
253 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
335 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
254 | else |
336 | else |
255 | { |
337 | { |
256 | #if 0 |
338 | #if CORO_PREFER_PERL_FUNCTIONS |
257 | /* this is probably cleaner, but also slower? */ |
339 | /* this is probably cleaner, but also slower? */ |
258 | CV *cp = Perl_cv_clone (cv); |
340 | CV *cp = Perl_cv_clone (cv); |
259 | CvPADLIST (cv) = CvPADLIST (cp); |
341 | CvPADLIST (cv) = CvPADLIST (cp); |
260 | CvPADLIST (cp) = 0; |
342 | CvPADLIST (cp) = 0; |
261 | SvREFCNT_dec (cp); |
343 | SvREFCNT_dec (cp); |
262 | #else |
344 | #else |
263 | CvPADLIST (cv) = coro_clone_padlist (cv); |
345 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
264 | #endif |
346 | #endif |
265 | } |
347 | } |
266 | } |
348 | } |
267 | |
349 | |
268 | static void |
350 | static void |
269 | put_padlist (CV *cv) |
351 | put_padlist (pTHX_ CV *cv) |
270 | { |
352 | { |
271 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
353 | MAGIC *mg = CORO_MAGIC (cv); |
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354 | AV *av; |
272 | |
355 | |
273 | if (!mg) |
356 | if (!mg) |
274 | { |
357 | { |
275 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
358 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
276 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
359 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
277 | mg->mg_virtual = &vtbl_coro; |
360 | mg->mg_virtual = &vtbl_coro; |
278 | mg->mg_obj = (SV *)newAV (); |
361 | mg->mg_obj = (SV *)newAV (); |
279 | } |
362 | } |
280 | |
363 | |
281 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
364 | av = (AV *)mg->mg_obj; |
|
|
365 | |
|
|
366 | if (AvFILLp (av) >= AvMAX (av)) |
|
|
367 | av_extend (av, AvMAX (av) + 1); |
|
|
368 | |
|
|
369 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
282 | } |
370 | } |
|
|
371 | |
|
|
372 | /** load & save, init *******************************************************/ |
283 | |
373 | |
284 | #define SB do { |
374 | #define SB do { |
285 | #define SE } while (0) |
375 | #define SE } while (0) |
286 | |
376 | |
287 | #define LOAD(state) load_state((state)); |
|
|
288 | #define SAVE(state,flags) save_state((state),(flags)); |
|
|
289 | |
|
|
290 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
377 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
291 | |
378 | |
292 | static void |
379 | static void |
293 | load_state(Coro__State c) |
380 | load_perl (pTHX_ Coro__State c) |
294 | { |
381 | { |
295 | PL_dowarn = c->dowarn; |
382 | #define VAR(name,type) PL_ ## name = c->name; |
296 | PL_in_eval = c->in_eval; |
383 | # include "state.h" |
297 | |
384 | #undef VAR |
298 | PL_curstackinfo = c->curstackinfo; |
|
|
299 | PL_curstack = c->curstack; |
|
|
300 | PL_mainstack = c->mainstack; |
|
|
301 | PL_stack_sp = c->stack_sp; |
|
|
302 | PL_op = c->op; |
|
|
303 | PL_curpad = c->curpad; |
|
|
304 | PL_comppad = c->comppad; |
|
|
305 | PL_compcv = c->compcv; |
|
|
306 | PL_stack_base = c->stack_base; |
|
|
307 | PL_stack_max = c->stack_max; |
|
|
308 | PL_tmps_stack = c->tmps_stack; |
|
|
309 | PL_tmps_floor = c->tmps_floor; |
|
|
310 | PL_tmps_ix = c->tmps_ix; |
|
|
311 | PL_tmps_max = c->tmps_max; |
|
|
312 | PL_markstack = c->markstack; |
|
|
313 | PL_markstack_ptr = c->markstack_ptr; |
|
|
314 | PL_markstack_max = c->markstack_max; |
|
|
315 | PL_scopestack = c->scopestack; |
|
|
316 | PL_scopestack_ix = c->scopestack_ix; |
|
|
317 | PL_scopestack_max = c->scopestack_max; |
|
|
318 | PL_savestack = c->savestack; |
|
|
319 | PL_savestack_ix = c->savestack_ix; |
|
|
320 | PL_savestack_max = c->savestack_max; |
|
|
321 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
322 | PL_retstack = c->retstack; |
|
|
323 | PL_retstack_ix = c->retstack_ix; |
|
|
324 | PL_retstack_max = c->retstack_max; |
|
|
325 | #endif |
|
|
326 | PL_curpm = c->curpm; |
|
|
327 | PL_curcop = c->curcop; |
|
|
328 | |
385 | |
329 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
386 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
330 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
387 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
331 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
388 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
389 | if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); |
|
|
390 | |
|
|
391 | if (c->irssv) |
|
|
392 | { |
|
|
393 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
394 | { |
|
|
395 | SvREFCNT_dec (c->irssv); |
|
|
396 | c->irssv = 0; |
|
|
397 | } |
|
|
398 | else |
|
|
399 | { |
|
|
400 | REPLACE_SV (PL_rs, c->irssv); |
|
|
401 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
402 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
403 | } |
|
|
404 | } |
332 | |
405 | |
333 | { |
406 | { |
334 | dSP; |
407 | dSP; |
335 | CV *cv; |
408 | CV *cv; |
336 | |
409 | |
337 | /* now do the ugly restore mess */ |
410 | /* now do the ugly restore mess */ |
338 | while ((cv = (CV *)POPs)) |
411 | while ((cv = (CV *)POPs)) |
339 | { |
412 | { |
340 | AV *padlist = (AV *)POPs; |
|
|
341 | |
|
|
342 | if (padlist) |
|
|
343 | { |
|
|
344 | put_padlist (cv); /* mark this padlist as available */ |
413 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
345 | CvPADLIST(cv) = padlist; |
414 | CvDEPTH (cv) = PTR2IV (POPs); |
346 | } |
415 | CvPADLIST (cv) = (AV *)POPs; |
347 | |
|
|
348 | ++CvDEPTH(cv); |
|
|
349 | } |
416 | } |
350 | |
417 | |
351 | PUTBACK; |
418 | PUTBACK; |
352 | } |
419 | } |
353 | } |
420 | } |
354 | |
421 | |
355 | static void |
422 | static void |
356 | save_state(Coro__State c, int flags) |
423 | save_perl (pTHX_ Coro__State c) |
357 | { |
424 | { |
358 | { |
425 | { |
359 | dSP; |
426 | dSP; |
360 | I32 cxix = cxstack_ix; |
427 | I32 cxix = cxstack_ix; |
361 | PERL_CONTEXT *ccstk = cxstack; |
428 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
364 | /* |
431 | /* |
365 | * the worst thing you can imagine happens first - we have to save |
432 | * the worst thing you can imagine happens first - we have to save |
366 | * (and reinitialize) all cv's in the whole callchain :( |
433 | * (and reinitialize) all cv's in the whole callchain :( |
367 | */ |
434 | */ |
368 | |
435 | |
369 | PUSHs (Nullsv); |
436 | XPUSHs (Nullsv); |
370 | /* this loop was inspired by pp_caller */ |
437 | /* this loop was inspired by pp_caller */ |
371 | for (;;) |
438 | for (;;) |
372 | { |
439 | { |
373 | while (cxix >= 0) |
440 | while (cxix >= 0) |
374 | { |
441 | { |
375 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
442 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
376 | |
443 | |
377 | if (CxTYPE(cx) == CXt_SUB) |
444 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
378 | { |
445 | { |
379 | CV *cv = cx->blk_sub.cv; |
446 | CV *cv = cx->blk_sub.cv; |
|
|
447 | |
380 | if (CvDEPTH(cv)) |
448 | if (CvDEPTH (cv)) |
381 | { |
449 | { |
382 | EXTEND (SP, CvDEPTH(cv)*2); |
450 | EXTEND (SP, 3); |
383 | |
|
|
384 | while (--CvDEPTH(cv)) |
|
|
385 | { |
|
|
386 | /* this tells the restore code to increment CvDEPTH */ |
|
|
387 | PUSHs (Nullsv); |
|
|
388 | PUSHs ((SV *)cv); |
|
|
389 | } |
|
|
390 | |
|
|
391 | PUSHs ((SV *)CvPADLIST(cv)); |
451 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
452 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
392 | PUSHs ((SV *)cv); |
453 | PUSHs ((SV *)cv); |
393 | |
454 | |
|
|
455 | CvDEPTH (cv) = 0; |
394 | get_padlist (cv); |
456 | get_padlist (aTHX_ cv); |
395 | } |
457 | } |
396 | } |
458 | } |
397 | #ifdef CXt_FORMAT |
|
|
398 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
399 | { |
|
|
400 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
401 | /* my bold guess is as a simple, plain sub... */ |
|
|
402 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
403 | } |
|
|
404 | #endif |
|
|
405 | } |
459 | } |
406 | |
460 | |
407 | if (top_si->si_type == PERLSI_MAIN) |
461 | if (top_si->si_type == PERLSI_MAIN) |
408 | break; |
462 | break; |
409 | |
463 | |
410 | top_si = top_si->si_prev; |
464 | top_si = top_si->si_prev; |
411 | ccstk = top_si->si_cxstack; |
465 | ccstk = top_si->si_cxstack; |
412 | cxix = top_si->si_cxix; |
466 | cxix = top_si->si_cxix; |
413 | } |
467 | } |
414 | |
468 | |
415 | PUTBACK; |
469 | PUTBACK; |
416 | } |
470 | } |
417 | |
471 | |
418 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
472 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
419 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
473 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
420 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
474 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
|
|
475 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
|
|
476 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
421 | |
477 | |
422 | c->dowarn = PL_dowarn; |
478 | #define VAR(name,type)c->name = PL_ ## name; |
423 | c->in_eval = PL_in_eval; |
479 | # include "state.h" |
424 | |
480 | #undef VAR |
425 | c->curstackinfo = PL_curstackinfo; |
|
|
426 | c->curstack = PL_curstack; |
|
|
427 | c->mainstack = PL_mainstack; |
|
|
428 | c->stack_sp = PL_stack_sp; |
|
|
429 | c->op = PL_op; |
|
|
430 | c->curpad = PL_curpad; |
|
|
431 | c->comppad = PL_comppad; |
|
|
432 | c->compcv = PL_compcv; |
|
|
433 | c->stack_base = PL_stack_base; |
|
|
434 | c->stack_max = PL_stack_max; |
|
|
435 | c->tmps_stack = PL_tmps_stack; |
|
|
436 | c->tmps_floor = PL_tmps_floor; |
|
|
437 | c->tmps_ix = PL_tmps_ix; |
|
|
438 | c->tmps_max = PL_tmps_max; |
|
|
439 | c->markstack = PL_markstack; |
|
|
440 | c->markstack_ptr = PL_markstack_ptr; |
|
|
441 | c->markstack_max = PL_markstack_max; |
|
|
442 | c->scopestack = PL_scopestack; |
|
|
443 | c->scopestack_ix = PL_scopestack_ix; |
|
|
444 | c->scopestack_max = PL_scopestack_max; |
|
|
445 | c->savestack = PL_savestack; |
|
|
446 | c->savestack_ix = PL_savestack_ix; |
|
|
447 | c->savestack_max = PL_savestack_max; |
|
|
448 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
449 | c->retstack = PL_retstack; |
|
|
450 | c->retstack_ix = PL_retstack_ix; |
|
|
451 | c->retstack_max = PL_retstack_max; |
|
|
452 | #endif |
|
|
453 | c->curpm = PL_curpm; |
|
|
454 | c->curcop = PL_curcop; |
|
|
455 | } |
481 | } |
456 | |
482 | |
457 | /* |
483 | /* |
458 | * allocate various perl stacks. This is an exact copy |
484 | * allocate various perl stacks. This is an exact copy |
459 | * of perl.c:init_stacks, except that it uses less memory |
485 | * of perl.c:init_stacks, except that it uses less memory |
460 | * on the (sometimes correct) assumption that coroutines do |
486 | * on the (sometimes correct) assumption that coroutines do |
461 | * not usually need a lot of stackspace. |
487 | * not usually need a lot of stackspace. |
462 | */ |
488 | */ |
|
|
489 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
490 | # define coro_init_stacks init_stacks |
|
|
491 | #else |
463 | static void |
492 | static void |
464 | coro_init_stacks () |
493 | coro_init_stacks (pTHX) |
465 | { |
494 | { |
466 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
495 | PL_curstackinfo = new_stackinfo(64, 6); |
467 | PL_curstackinfo->si_type = PERLSI_MAIN; |
496 | PL_curstackinfo->si_type = PERLSI_MAIN; |
468 | PL_curstack = PL_curstackinfo->si_stack; |
497 | PL_curstack = PL_curstackinfo->si_stack; |
469 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
498 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
470 | |
499 | |
471 | PL_stack_base = AvARRAY(PL_curstack); |
500 | PL_stack_base = AvARRAY(PL_curstack); |
472 | PL_stack_sp = PL_stack_base; |
501 | PL_stack_sp = PL_stack_base; |
473 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
502 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
474 | |
503 | |
475 | New(50,PL_tmps_stack,96,SV*); |
504 | New(50,PL_tmps_stack,64,SV*); |
476 | PL_tmps_floor = -1; |
505 | PL_tmps_floor = -1; |
477 | PL_tmps_ix = -1; |
506 | PL_tmps_ix = -1; |
478 | PL_tmps_max = 96; |
507 | PL_tmps_max = 64; |
479 | |
508 | |
480 | New(54,PL_markstack,16,I32); |
509 | New(54,PL_markstack,16,I32); |
481 | PL_markstack_ptr = PL_markstack; |
510 | PL_markstack_ptr = PL_markstack; |
482 | PL_markstack_max = PL_markstack + 16; |
511 | PL_markstack_max = PL_markstack + 16; |
483 | |
512 | |
… | |
… | |
487 | |
516 | |
488 | New(54,PL_scopestack,16,I32); |
517 | New(54,PL_scopestack,16,I32); |
489 | PL_scopestack_ix = 0; |
518 | PL_scopestack_ix = 0; |
490 | PL_scopestack_max = 16; |
519 | PL_scopestack_max = 16; |
491 | |
520 | |
492 | New(54,PL_savestack,96,ANY); |
521 | New(54,PL_savestack,64,ANY); |
493 | PL_savestack_ix = 0; |
522 | PL_savestack_ix = 0; |
494 | PL_savestack_max = 96; |
523 | PL_savestack_max = 64; |
495 | |
524 | |
496 | #if !PERL_VERSION_ATLEAST (5,9,0) |
525 | #if !PERL_VERSION_ATLEAST (5,9,0) |
497 | New(54,PL_retstack,8,OP*); |
526 | New(54,PL_retstack,4,OP*); |
498 | PL_retstack_ix = 0; |
527 | PL_retstack_ix = 0; |
499 | PL_retstack_max = 8; |
528 | PL_retstack_max = 4; |
500 | #endif |
529 | #endif |
501 | } |
530 | } |
|
|
531 | #endif |
502 | |
532 | |
503 | /* |
533 | /* |
504 | * destroy the stacks, the callchain etc... |
534 | * destroy the stacks, the callchain etc... |
505 | */ |
535 | */ |
506 | static void |
536 | static void |
507 | coro_destroy_stacks () |
537 | coro_destroy_stacks (pTHX) |
508 | { |
538 | { |
509 | if (!IN_DESTRUCT) |
539 | if (!IN_DESTRUCT) |
510 | { |
540 | { |
511 | /* is this ugly, I ask? */ |
541 | /* restore all saved variables and stuff */ |
512 | LEAVE_SCOPE (0); |
542 | LEAVE_SCOPE (0); |
|
|
543 | assert (PL_tmps_floor == -1); |
513 | |
544 | |
514 | /* sure it is, but more important: is it correct?? :/ */ |
545 | /* free all temporaries */ |
515 | FREETMPS; |
546 | FREETMPS; |
|
|
547 | assert (PL_tmps_ix == -1); |
516 | |
548 | |
|
|
549 | /* unwind all extra stacks */ |
517 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
550 | POPSTACK_TO (PL_mainstack); |
|
|
551 | |
|
|
552 | /* unwind main stack */ |
|
|
553 | dounwind (-1); |
518 | } |
554 | } |
519 | |
555 | |
520 | while (PL_curstackinfo->si_next) |
556 | while (PL_curstackinfo->si_next) |
521 | PL_curstackinfo = PL_curstackinfo->si_next; |
557 | PL_curstackinfo = PL_curstackinfo->si_next; |
522 | |
558 | |
523 | while (PL_curstackinfo) |
559 | while (PL_curstackinfo) |
524 | { |
560 | { |
525 | PERL_SI *p = PL_curstackinfo->si_prev; |
561 | PERL_SI *p = PL_curstackinfo->si_prev; |
526 | |
562 | |
527 | { /*D*//*remove*/ |
|
|
528 | dSP; |
|
|
529 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
530 | PUTBACK; /* possibly superfluous */ |
|
|
531 | } |
|
|
532 | |
|
|
533 | if (!IN_DESTRUCT) |
563 | if (!IN_DESTRUCT) |
534 | { |
|
|
535 | dounwind (-1);/*D*//*remove*/ |
|
|
536 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
564 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
537 | } |
|
|
538 | |
565 | |
539 | Safefree (PL_curstackinfo->si_cxstack); |
566 | Safefree (PL_curstackinfo->si_cxstack); |
540 | Safefree (PL_curstackinfo); |
567 | Safefree (PL_curstackinfo); |
541 | PL_curstackinfo = p; |
568 | PL_curstackinfo = p; |
542 | } |
569 | } |
… | |
… | |
548 | #if !PERL_VERSION_ATLEAST (5,9,0) |
575 | #if !PERL_VERSION_ATLEAST (5,9,0) |
549 | Safefree (PL_retstack); |
576 | Safefree (PL_retstack); |
550 | #endif |
577 | #endif |
551 | } |
578 | } |
552 | |
579 | |
|
|
580 | static size_t |
|
|
581 | coro_rss (pTHX_ struct coro *coro) |
|
|
582 | { |
|
|
583 | size_t rss = sizeof (coro); |
|
|
584 | |
|
|
585 | if (coro->mainstack) |
|
|
586 | { |
|
|
587 | if (coro->flags & CF_RUNNING) |
|
|
588 | { |
|
|
589 | #define VAR(name,type)coro->name = PL_ ## name; |
|
|
590 | # include "state.h" |
|
|
591 | #undef VAR |
|
|
592 | } |
|
|
593 | |
|
|
594 | rss += sizeof (coro->curstackinfo); |
|
|
595 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
596 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
597 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
|
|
598 | rss += coro->tmps_max * sizeof (SV *); |
|
|
599 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
600 | rss += coro->scopestack_max * sizeof (I32); |
|
|
601 | rss += coro->savestack_max * sizeof (ANY); |
|
|
602 | |
|
|
603 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
604 | rss += coro->retstack_max * sizeof (OP *); |
|
|
605 | #endif |
|
|
606 | } |
|
|
607 | |
|
|
608 | return rss; |
|
|
609 | } |
|
|
610 | |
|
|
611 | /** coroutine stack handling ************************************************/ |
|
|
612 | |
553 | static void |
613 | static void |
554 | setup_coro (struct coro *coro) |
614 | setup_coro (pTHX_ struct coro *coro) |
555 | { |
615 | { |
556 | /* |
616 | /* |
557 | * emulate part of the perl startup here. |
617 | * emulate part of the perl startup here. |
558 | */ |
618 | */ |
559 | |
|
|
560 | coro_init_stacks (); |
619 | coro_init_stacks (aTHX); |
561 | |
620 | |
|
|
621 | PL_runops = RUNOPS_DEFAULT; |
|
|
622 | PL_curcop = &PL_compiling; |
|
|
623 | PL_in_eval = EVAL_NULL; |
562 | PL_curcop = 0; |
624 | PL_comppad = 0; |
563 | PL_in_eval = 0; |
|
|
564 | PL_curpm = 0; |
625 | PL_curpm = 0; |
|
|
626 | PL_localizing = 0; |
|
|
627 | PL_dirty = 0; |
|
|
628 | PL_restartop = 0; |
565 | |
629 | |
566 | { |
630 | { |
567 | dSP; |
631 | dSP; |
568 | LOGOP myop; |
632 | LOGOP myop; |
569 | |
633 | |
570 | /* I have no idea why this is needed, but it is */ |
|
|
571 | PUSHMARK (SP); |
|
|
572 | |
|
|
573 | SvREFCNT_dec (GvAV (PL_defgv)); |
634 | SvREFCNT_dec (GvAV (PL_defgv)); |
574 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
635 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
575 | |
636 | |
576 | Zero (&myop, 1, LOGOP); |
637 | Zero (&myop, 1, LOGOP); |
577 | myop.op_next = Nullop; |
638 | myop.op_next = Nullop; |
578 | myop.op_flags = OPf_WANT_VOID; |
639 | myop.op_flags = OPf_WANT_VOID; |
579 | |
640 | |
|
|
641 | PUSHMARK (SP); |
|
|
642 | XPUSHs (av_shift (GvAV (PL_defgv))); |
|
|
643 | PUTBACK; |
580 | PL_op = (OP *)&myop; |
644 | PL_op = (OP *)&myop; |
581 | |
|
|
582 | PUSHMARK (SP); |
|
|
583 | XPUSHs ((SV *)get_cv ("Coro::State::coro_init", FALSE)); |
|
|
584 | PUTBACK; |
|
|
585 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
645 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
586 | SPAGAIN; |
646 | SPAGAIN; |
587 | |
|
|
588 | ENTER; /* necessary e.g. for dounwind */ |
|
|
589 | } |
647 | } |
|
|
648 | |
|
|
649 | ENTER; /* necessary e.g. for dounwind */ |
590 | } |
650 | } |
591 | |
651 | |
592 | static void |
652 | static void |
593 | free_coro_mortal () |
653 | free_coro_mortal (pTHX) |
594 | { |
654 | { |
595 | if (coro_mortal) |
655 | if (coro_mortal) |
596 | { |
656 | { |
597 | SvREFCNT_dec (coro_mortal); |
657 | SvREFCNT_dec (coro_mortal); |
598 | coro_mortal = 0; |
658 | coro_mortal = 0; |
599 | } |
659 | } |
600 | } |
660 | } |
601 | |
661 | |
|
|
662 | static int |
|
|
663 | runops_trace (pTHX) |
|
|
664 | { |
|
|
665 | COP *oldcop = 0; |
|
|
666 | int oldcxix = -2; |
|
|
667 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
668 | coro_cctx *cctx = coro->cctx; |
|
|
669 | |
|
|
670 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
671 | { |
|
|
672 | PERL_ASYNC_CHECK (); |
|
|
673 | |
|
|
674 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
675 | { |
|
|
676 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
677 | SV **bot, **top; |
|
|
678 | AV *av = newAV (); /* return values */ |
|
|
679 | SV **cb; |
|
|
680 | runops_proc_t old_runops = PL_runops; |
|
|
681 | dSP; |
|
|
682 | ENTER; |
|
|
683 | SAVETMPS; |
|
|
684 | EXTEND (SP, 3); |
|
|
685 | PL_runops = RUNOPS_DEFAULT; |
|
|
686 | |
|
|
687 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
688 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
689 | if (isGV (gv)) |
|
|
690 | gv_efullname3 (fullname, gv, 0); |
|
|
691 | |
|
|
692 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
693 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
694 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
695 | : bot; |
|
|
696 | |
|
|
697 | while (bot < top) |
|
|
698 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
699 | |
|
|
700 | PUSHMARK (SP); |
|
|
701 | PUSHs (&PL_sv_no); |
|
|
702 | PUSHs (fullname); |
|
|
703 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
704 | PUTBACK; |
|
|
705 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
706 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
707 | SPAGAIN; |
|
|
708 | |
|
|
709 | FREETMPS; |
|
|
710 | LEAVE; |
|
|
711 | PL_runops = old_runops; |
|
|
712 | } |
|
|
713 | |
|
|
714 | if (oldcop != PL_curcop) |
|
|
715 | { |
|
|
716 | oldcop = PL_curcop; |
|
|
717 | |
|
|
718 | if (PL_curcop != &PL_compiling) |
|
|
719 | { |
|
|
720 | SV **cb; |
|
|
721 | runops_proc_t old_runops = PL_runops; |
|
|
722 | dSP; |
|
|
723 | ENTER; |
|
|
724 | SAVETMPS; |
|
|
725 | EXTEND (SP, 3); |
|
|
726 | PL_runops = RUNOPS_DEFAULT; |
|
|
727 | |
|
|
728 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
729 | { |
|
|
730 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
731 | |
|
|
732 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
733 | { |
|
|
734 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
735 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
736 | if (isGV (gv)) |
|
|
737 | gv_efullname3 (fullname, gv, 0); |
|
|
738 | |
|
|
739 | PUSHMARK (SP); |
|
|
740 | PUSHs (&PL_sv_yes); |
|
|
741 | PUSHs (fullname); |
|
|
742 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
743 | PUTBACK; |
|
|
744 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
745 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
746 | SPAGAIN; |
|
|
747 | } |
|
|
748 | |
|
|
749 | oldcxix = cxstack_ix; |
|
|
750 | } |
|
|
751 | |
|
|
752 | if (cctx->flags & CC_TRACE_LINE) |
|
|
753 | { |
|
|
754 | PUSHMARK (SP); |
|
|
755 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
756 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
757 | PUTBACK; |
|
|
758 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
759 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
760 | SPAGAIN; |
|
|
761 | } |
|
|
762 | |
|
|
763 | FREETMPS; |
|
|
764 | LEAVE; |
|
|
765 | PL_runops = old_runops; |
|
|
766 | } |
|
|
767 | } |
|
|
768 | } |
|
|
769 | |
|
|
770 | TAINT_NOT; |
|
|
771 | return 0; |
|
|
772 | } |
|
|
773 | |
|
|
774 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
775 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
776 | /* during execution of a perl program */ |
602 | static void NOINLINE |
777 | static void NOINLINE |
603 | prepare_cctx (coro_cctx *cctx) |
778 | prepare_cctx (pTHX_ coro_cctx *cctx) |
604 | { |
779 | { |
605 | dSP; |
780 | dSP; |
606 | LOGOP myop; |
781 | LOGOP myop; |
607 | |
782 | |
|
|
783 | PL_top_env = &PL_start_env; |
|
|
784 | |
|
|
785 | if (cctx->flags & CC_TRACE) |
|
|
786 | PL_runops = runops_trace; |
|
|
787 | |
608 | Zero (&myop, 1, LOGOP); |
788 | Zero (&myop, 1, LOGOP); |
609 | myop.op_next = PL_op; |
789 | myop.op_next = PL_op; |
610 | myop.op_flags = OPf_WANT_VOID; |
790 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
611 | |
|
|
612 | sv_setiv (get_sv ("Coro::State::cctx", FALSE), PTR2IV (cctx)); |
|
|
613 | |
791 | |
614 | PUSHMARK (SP); |
792 | PUSHMARK (SP); |
|
|
793 | EXTEND (SP, 2); |
|
|
794 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
615 | XPUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE)); |
795 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
616 | PUTBACK; |
796 | PUTBACK; |
|
|
797 | PL_op = (OP *)&myop; |
617 | PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX); |
798 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
618 | SPAGAIN; |
799 | SPAGAIN; |
619 | } |
800 | } |
620 | |
801 | |
|
|
802 | /* |
|
|
803 | * this is a _very_ stripped down perl interpreter ;) |
|
|
804 | */ |
621 | static void |
805 | static void |
622 | coro_run (void *arg) |
806 | coro_run (void *arg) |
623 | { |
807 | { |
|
|
808 | dTHX; |
|
|
809 | |
624 | /* coro_run is the alternative epilogue of transfer() */ |
810 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
625 | UNLOCK; |
811 | UNLOCK; |
626 | |
812 | |
|
|
813 | /* we now skip the entersub that lead to transfer() */ |
|
|
814 | PL_op = PL_op->op_next; |
|
|
815 | |
|
|
816 | /* inject a fake subroutine call to cctx_init */ |
|
|
817 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
|
|
818 | |
|
|
819 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
820 | PL_restartop = PL_op; |
|
|
821 | perl_run (PL_curinterp); |
|
|
822 | |
627 | /* |
823 | /* |
628 | * this is a _very_ stripped down perl interpreter ;) |
824 | * If perl-run returns we assume exit() was being called or the coro |
|
|
825 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
826 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
827 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
828 | * coroutine as Coro has no such concept |
629 | */ |
829 | */ |
630 | PL_top_env = &PL_start_env; |
830 | PL_top_env = main_top_env; |
631 | /* inject call to cctx_init */ |
831 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
632 | prepare_cctx ((coro_cctx *)arg); |
|
|
633 | |
|
|
634 | /* somebody will hit me for both perl_run and PL_restartop */ |
|
|
635 | perl_run (PL_curinterp); |
|
|
636 | |
|
|
637 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
|
|
638 | abort (); |
|
|
639 | } |
832 | } |
640 | |
833 | |
641 | static coro_cctx * |
834 | static coro_cctx * |
642 | cctx_new () |
835 | cctx_new () |
643 | { |
836 | { |
644 | coro_cctx *cctx; |
837 | coro_cctx *cctx; |
|
|
838 | void *stack_start; |
|
|
839 | size_t stack_size; |
645 | |
840 | |
|
|
841 | ++cctx_count; |
|
|
842 | |
646 | New (0, cctx, 1, coro_cctx); |
843 | Newz (0, cctx, 1, coro_cctx); |
647 | |
844 | |
648 | #if HAVE_MMAP |
845 | #if HAVE_MMAP |
649 | |
846 | |
650 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
847 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
651 | /* mmap suppsedly does allocate-on-write for us */ |
848 | /* mmap supposedly does allocate-on-write for us */ |
652 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
849 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
653 | |
850 | |
654 | if (cctx->sptr == (void *)-1) |
851 | if (cctx->sptr != (void *)-1) |
655 | { |
|
|
656 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
657 | _exit (EXIT_FAILURE); |
|
|
658 | } |
852 | { |
659 | |
|
|
660 | # if STACKGUARD |
853 | # if CORO_STACKGUARD |
661 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
854 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
662 | # endif |
855 | # endif |
|
|
856 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
857 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
858 | cctx->flags |= CC_MAPPED; |
|
|
859 | } |
|
|
860 | else |
|
|
861 | #endif |
|
|
862 | { |
|
|
863 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
864 | New (0, cctx->sptr, coro_stacksize, long); |
663 | |
865 | |
664 | #else |
|
|
665 | |
|
|
666 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
667 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
668 | |
|
|
669 | if (!cctx->sptr) |
866 | if (!cctx->sptr) |
670 | { |
867 | { |
671 | perror ("FATAL: unable to malloc stack for coroutine"); |
868 | perror ("FATAL: unable to allocate stack for coroutine"); |
672 | _exit (EXIT_FAILURE); |
869 | _exit (EXIT_FAILURE); |
673 | } |
870 | } |
674 | |
871 | |
675 | #endif |
872 | stack_start = cctx->sptr; |
|
|
873 | stack_size = cctx->ssize; |
|
|
874 | } |
676 | |
875 | |
677 | #if USE_VALGRIND |
876 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
678 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
|
|
679 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
680 | cctx->ssize + (char *)cctx->sptr |
|
|
681 | ); |
|
|
682 | #endif |
|
|
683 | |
|
|
684 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
877 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
685 | |
878 | |
686 | return cctx; |
879 | return cctx; |
687 | } |
880 | } |
688 | |
881 | |
689 | static void |
882 | static void |
690 | cctx_free (coro_cctx *cctx) |
883 | cctx_destroy (coro_cctx *cctx) |
691 | { |
884 | { |
692 | if (!cctx) |
885 | if (!cctx) |
693 | return; |
886 | return; |
694 | |
887 | |
|
|
888 | --cctx_count; |
|
|
889 | |
695 | #if USE_VALGRIND |
890 | #if CORO_USE_VALGRIND |
696 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
891 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
697 | #endif |
892 | #endif |
698 | |
893 | |
699 | #if HAVE_MMAP |
894 | #if HAVE_MMAP |
|
|
895 | if (cctx->flags & CC_MAPPED) |
700 | munmap (cctx->sptr, cctx->ssize); |
896 | munmap (cctx->sptr, cctx->ssize); |
701 | #else |
897 | else |
|
|
898 | #endif |
702 | Safefree (cctx->sptr); |
899 | Safefree (cctx->sptr); |
703 | #endif |
|
|
704 | |
900 | |
705 | Safefree (cctx); |
901 | Safefree (cctx); |
706 | } |
902 | } |
707 | |
903 | |
708 | static coro_cctx *cctx_first; |
|
|
709 | static int cctx_count, cctx_idle; |
|
|
710 | |
|
|
711 | static coro_cctx * |
904 | static coro_cctx * |
712 | cctx_get () |
905 | cctx_get (pTHX) |
713 | { |
906 | { |
714 | coro_cctx *cctx; |
|
|
715 | |
|
|
716 | if (cctx_first) |
907 | while (cctx_first) |
717 | { |
908 | { |
|
|
909 | coro_cctx *cctx = cctx_first; |
|
|
910 | cctx_first = cctx->next; |
718 | --cctx_idle; |
911 | --cctx_idle; |
719 | cctx = cctx_first; |
912 | |
720 | cctx_first = cctx->next; |
913 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
721 | } |
914 | return cctx; |
722 | else |
915 | |
723 | { |
916 | cctx_destroy (cctx); |
724 | ++cctx_count; |
|
|
725 | cctx = cctx_new (); |
|
|
726 | PL_op = PL_op->op_next; |
|
|
727 | } |
917 | } |
728 | |
918 | |
729 | return cctx; |
919 | return cctx_new (); |
730 | } |
920 | } |
731 | |
921 | |
732 | static void |
922 | static void |
733 | cctx_put (coro_cctx *cctx) |
923 | cctx_put (coro_cctx *cctx) |
734 | { |
924 | { |
|
|
925 | /* free another cctx if overlimit */ |
|
|
926 | if (cctx_idle >= MAX_IDLE_CCTX) |
|
|
927 | { |
|
|
928 | coro_cctx *first = cctx_first; |
|
|
929 | cctx_first = first->next; |
|
|
930 | --cctx_idle; |
|
|
931 | |
|
|
932 | cctx_destroy (first); |
|
|
933 | } |
|
|
934 | |
735 | ++cctx_idle; |
935 | ++cctx_idle; |
736 | cctx->next = cctx_first; |
936 | cctx->next = cctx_first; |
737 | cctx_first = cctx; |
937 | cctx_first = cctx; |
738 | } |
938 | } |
739 | |
939 | |
740 | /* never call directly, always through the coro_state_transfer global variable */ |
940 | /** coroutine switching *****************************************************/ |
|
|
941 | |
741 | static void NOINLINE |
942 | static void NOINLINE |
|
|
943 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
944 | { |
|
|
945 | if (prev != next) |
|
|
946 | { |
|
|
947 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
|
|
948 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
949 | |
|
|
950 | if (next->flags & CF_RUNNING) |
|
|
951 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
952 | |
|
|
953 | if (next->flags & CF_DESTROYED) |
|
|
954 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
955 | |
|
|
956 | if (PL_lex_state != LEX_NOTPARSING) |
|
|
957 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
|
|
958 | } |
|
|
959 | } |
|
|
960 | |
|
|
961 | /* always use the TRANSFER macro */ |
|
|
962 | static void NOINLINE |
742 | transfer (struct coro *prev, struct coro *next, int flags) |
963 | transfer (pTHX_ struct coro *prev, struct coro *next) |
743 | { |
964 | { |
744 | dSTACKLEVEL; |
965 | dSTACKLEVEL; |
745 | |
966 | |
746 | /* sometimes transfer is only called to set idle_sp */ |
967 | /* sometimes transfer is only called to set idle_sp */ |
747 | if (flags == TRANSFER_SET_STACKLEVEL) |
968 | if (!next) |
|
|
969 | { |
748 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
970 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
|
|
971 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
|
|
972 | } |
749 | else if (prev != next) |
973 | else if (prev != next) |
750 | { |
974 | { |
751 | coro_cctx *prev__cctx; |
975 | coro_cctx *prev__cctx; |
752 | |
976 | |
|
|
977 | if (prev->flags & CF_NEW) |
|
|
978 | { |
|
|
979 | /* create a new empty context */ |
|
|
980 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
981 | prev->flags &= ~CF_NEW; |
|
|
982 | prev->flags |= CF_RUNNING; |
|
|
983 | } |
|
|
984 | |
|
|
985 | prev->flags &= ~CF_RUNNING; |
|
|
986 | next->flags |= CF_RUNNING; |
|
|
987 | |
753 | LOCK; |
988 | LOCK; |
754 | |
989 | |
755 | if (next->mainstack) |
990 | if (next->flags & CF_NEW) |
756 | { |
991 | { |
757 | /* coroutine already started */ |
992 | /* need to start coroutine */ |
758 | SAVE (prev, flags); |
993 | next->flags &= ~CF_NEW; |
759 | LOAD (next); |
994 | /* first get rid of the old state */ |
|
|
995 | save_perl (aTHX_ prev); |
|
|
996 | /* setup coroutine call */ |
|
|
997 | setup_coro (aTHX_ next); |
760 | } |
998 | } |
761 | else |
999 | else |
762 | { |
1000 | { |
763 | /* need to start coroutine */ |
1001 | /* coroutine already started */ |
764 | /* first get rid of the old state */ |
1002 | save_perl (aTHX_ prev); |
765 | SAVE (prev, -1); |
1003 | load_perl (aTHX_ next); |
766 | /* setup coroutine call */ |
|
|
767 | setup_coro (next); |
|
|
768 | /* need a stack */ |
|
|
769 | next->cctx = 0; |
|
|
770 | } |
1004 | } |
771 | |
1005 | |
772 | if (!prev->cctx) |
|
|
773 | /* create a new empty context */ |
|
|
774 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
775 | |
|
|
776 | prev__cctx = prev->cctx; |
1006 | prev__cctx = prev->cctx; |
777 | |
1007 | |
778 | /* possibly "free" the cctx */ |
1008 | /* possibly "free" the cctx */ |
779 | if (prev__cctx->idle_sp == STACKLEVEL) |
1009 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
780 | { |
1010 | { |
|
|
1011 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
1012 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
1013 | |
|
|
1014 | prev->cctx = 0; |
|
|
1015 | |
781 | cctx_put (prev__cctx); |
1016 | cctx_put (prev__cctx); |
782 | prev->cctx = 0; |
|
|
783 | } |
1017 | } |
784 | |
1018 | |
785 | if (!next->cctx) |
1019 | if (!next->cctx) |
786 | next->cctx = cctx_get (); |
1020 | next->cctx = cctx_get (aTHX); |
787 | |
1021 | |
788 | if (prev__cctx != next->cctx) |
1022 | if (prev__cctx != next->cctx) |
789 | { |
1023 | { |
790 | prev__cctx->top_env = PL_top_env; |
1024 | prev__cctx->top_env = PL_top_env; |
791 | PL_top_env = next->cctx->top_env; |
1025 | PL_top_env = next->cctx->top_env; |
792 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1026 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
793 | } |
1027 | } |
794 | |
1028 | |
795 | free_coro_mortal (); |
1029 | free_coro_mortal (aTHX); |
796 | |
|
|
797 | UNLOCK; |
1030 | UNLOCK; |
798 | } |
1031 | } |
799 | } |
1032 | } |
800 | |
1033 | |
801 | struct transfer_args |
1034 | struct transfer_args |
802 | { |
1035 | { |
803 | struct coro *prev, *next; |
1036 | struct coro *prev, *next; |
804 | int flags; |
|
|
805 | }; |
1037 | }; |
806 | |
1038 | |
807 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags) |
1039 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
|
|
1040 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
808 | |
1041 | |
|
|
1042 | /** high level stuff ********************************************************/ |
|
|
1043 | |
809 | static void |
1044 | static int |
810 | coro_state_destroy (struct coro *coro) |
1045 | coro_state_destroy (pTHX_ struct coro *coro) |
811 | { |
1046 | { |
812 | if (coro->refcnt--) |
1047 | if (coro->flags & CF_DESTROYED) |
813 | return; |
1048 | return 0; |
|
|
1049 | |
|
|
1050 | coro->flags |= CF_DESTROYED; |
|
|
1051 | |
|
|
1052 | if (coro->flags & CF_READY) |
|
|
1053 | { |
|
|
1054 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1055 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1056 | LOCK; |
|
|
1057 | --coro_nready; |
|
|
1058 | UNLOCK; |
|
|
1059 | } |
|
|
1060 | else |
|
|
1061 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
814 | |
1062 | |
815 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1063 | if (coro->mainstack && coro->mainstack != main_mainstack) |
816 | { |
1064 | { |
817 | struct coro temp; |
1065 | struct coro temp; |
818 | |
1066 | |
819 | SAVE ((&temp), TRANSFER_SAVE_ALL); |
1067 | assert (!(coro->flags & CF_RUNNING)); |
820 | LOAD (coro); |
|
|
821 | |
1068 | |
|
|
1069 | Zero (&temp, 1, struct coro); |
|
|
1070 | temp.save = CORO_SAVE_ALL; |
|
|
1071 | |
|
|
1072 | if (coro->flags & CF_RUNNING) |
|
|
1073 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1074 | |
|
|
1075 | save_perl (aTHX_ &temp); |
|
|
1076 | load_perl (aTHX_ coro); |
|
|
1077 | |
822 | coro_destroy_stacks (); |
1078 | coro_destroy_stacks (aTHX); |
823 | |
1079 | |
824 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1080 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
825 | |
1081 | |
826 | coro->mainstack = 0; |
1082 | coro->mainstack = 0; |
827 | } |
1083 | } |
828 | |
1084 | |
829 | cctx_free (coro->cctx); |
1085 | cctx_destroy (coro->cctx); |
830 | SvREFCNT_dec (coro->args); |
1086 | SvREFCNT_dec (coro->args); |
831 | Safefree (coro); |
1087 | |
|
|
1088 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1089 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1090 | if (coro == coro_first) coro_first = coro->next; |
|
|
1091 | |
|
|
1092 | return 1; |
832 | } |
1093 | } |
833 | |
1094 | |
834 | static int |
1095 | static int |
835 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
1096 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
836 | { |
1097 | { |
837 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1098 | struct coro *coro = (struct coro *)mg->mg_ptr; |
838 | mg->mg_ptr = 0; |
1099 | mg->mg_ptr = 0; |
839 | |
1100 | |
|
|
1101 | coro->hv = 0; |
|
|
1102 | |
|
|
1103 | if (--coro->refcnt < 0) |
|
|
1104 | { |
840 | coro_state_destroy (coro); |
1105 | coro_state_destroy (aTHX_ coro); |
|
|
1106 | Safefree (coro); |
|
|
1107 | } |
841 | |
1108 | |
842 | return 0; |
1109 | return 0; |
843 | } |
1110 | } |
844 | |
1111 | |
845 | static int |
1112 | static int |
… | |
… | |
852 | return 0; |
1119 | return 0; |
853 | } |
1120 | } |
854 | |
1121 | |
855 | static MGVTBL coro_state_vtbl = { |
1122 | static MGVTBL coro_state_vtbl = { |
856 | 0, 0, 0, 0, |
1123 | 0, 0, 0, 0, |
857 | coro_state_clear, |
1124 | coro_state_free, |
858 | 0, |
1125 | 0, |
859 | #ifdef MGf_DUP |
1126 | #ifdef MGf_DUP |
860 | coro_state_dup, |
1127 | coro_state_dup, |
861 | #else |
1128 | #else |
862 | # define MGf_DUP 0 |
1129 | # define MGf_DUP 0 |
863 | #endif |
1130 | #endif |
864 | }; |
1131 | }; |
865 | |
1132 | |
866 | static struct coro * |
|
|
867 | SvSTATE (SV *coro) |
|
|
868 | { |
|
|
869 | HV *stash; |
|
|
870 | MAGIC *mg; |
|
|
871 | |
|
|
872 | if (SvROK (coro)) |
|
|
873 | coro = SvRV (coro); |
|
|
874 | |
|
|
875 | stash = SvSTASH (coro); |
|
|
876 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
877 | { |
|
|
878 | /* very slow, but rare, check */ |
|
|
879 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
880 | croak ("Coro::State object required"); |
|
|
881 | } |
|
|
882 | |
|
|
883 | mg = SvMAGIC (coro); |
|
|
884 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
885 | return (struct coro *)mg->mg_ptr; |
|
|
886 | } |
|
|
887 | |
|
|
888 | static void |
1133 | static void |
889 | prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags) |
1134 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
890 | { |
1135 | { |
891 | ta->prev = SvSTATE (prev); |
1136 | ta->prev = SvSTATE (prev_sv); |
892 | ta->next = SvSTATE (next); |
1137 | ta->next = SvSTATE (next_sv); |
893 | ta->flags = flags; |
1138 | TRANSFER_CHECK (*ta); |
894 | } |
1139 | } |
895 | |
1140 | |
896 | static void |
1141 | static void |
897 | api_transfer (SV *prev, SV *next, int flags) |
1142 | api_transfer (SV *prev_sv, SV *next_sv) |
898 | { |
1143 | { |
899 | dTHX; |
1144 | dTHX; |
900 | struct transfer_args ta; |
1145 | struct transfer_args ta; |
901 | |
1146 | |
902 | prepare_transfer (&ta, prev, next, flags); |
1147 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
903 | TRANSFER (ta); |
1148 | TRANSFER (ta); |
904 | } |
1149 | } |
905 | |
1150 | |
|
|
1151 | static int |
|
|
1152 | api_save (SV *coro_sv, int new_save) |
|
|
1153 | { |
|
|
1154 | dTHX; |
|
|
1155 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1156 | int old_save = coro->save; |
|
|
1157 | |
|
|
1158 | if (new_save >= 0) |
|
|
1159 | coro->save = new_save; |
|
|
1160 | |
|
|
1161 | return old_save; |
|
|
1162 | } |
|
|
1163 | |
906 | /** Coro ********************************************************************/ |
1164 | /** Coro ********************************************************************/ |
907 | |
1165 | |
908 | #define PRIO_MAX 3 |
|
|
909 | #define PRIO_HIGH 1 |
|
|
910 | #define PRIO_NORMAL 0 |
|
|
911 | #define PRIO_LOW -1 |
|
|
912 | #define PRIO_IDLE -3 |
|
|
913 | #define PRIO_MIN -4 |
|
|
914 | |
|
|
915 | /* for Coro.pm */ |
|
|
916 | static GV *coro_current, *coro_idle; |
|
|
917 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
918 | static int coro_nready; |
|
|
919 | |
|
|
920 | static void |
1166 | static void |
921 | coro_enq (SV *sv) |
1167 | coro_enq (pTHX_ SV *coro_sv) |
922 | { |
1168 | { |
923 | int prio; |
|
|
924 | |
|
|
925 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
926 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
927 | |
|
|
928 | prio = SvSTATE (sv)->prio; |
|
|
929 | |
|
|
930 | av_push (coro_ready [prio - PRIO_MIN], sv); |
1169 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
931 | coro_nready++; |
|
|
932 | } |
1170 | } |
933 | |
1171 | |
934 | static SV * |
1172 | static SV * |
935 | coro_deq (int min_prio) |
1173 | coro_deq (pTHX_ int min_prio) |
936 | { |
1174 | { |
937 | int prio = PRIO_MAX - PRIO_MIN; |
1175 | int prio = PRIO_MAX - PRIO_MIN; |
938 | |
1176 | |
939 | min_prio -= PRIO_MIN; |
1177 | min_prio -= PRIO_MIN; |
940 | if (min_prio < 0) |
1178 | if (min_prio < 0) |
941 | min_prio = 0; |
1179 | min_prio = 0; |
942 | |
1180 | |
943 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1181 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
944 | if (AvFILLp (coro_ready [prio]) >= 0) |
1182 | if (AvFILLp (coro_ready [prio]) >= 0) |
945 | { |
|
|
946 | coro_nready--; |
|
|
947 | return av_shift (coro_ready [prio]); |
1183 | return av_shift (coro_ready [prio]); |
948 | } |
|
|
949 | |
1184 | |
950 | return 0; |
1185 | return 0; |
951 | } |
1186 | } |
952 | |
1187 | |
|
|
1188 | static int |
|
|
1189 | api_ready (SV *coro_sv) |
|
|
1190 | { |
|
|
1191 | dTHX; |
|
|
1192 | struct coro *coro; |
|
|
1193 | |
|
|
1194 | if (SvROK (coro_sv)) |
|
|
1195 | coro_sv = SvRV (coro_sv); |
|
|
1196 | |
|
|
1197 | coro = SvSTATE (coro_sv); |
|
|
1198 | |
|
|
1199 | if (coro->flags & CF_READY) |
|
|
1200 | return 0; |
|
|
1201 | |
|
|
1202 | coro->flags |= CF_READY; |
|
|
1203 | |
|
|
1204 | LOCK; |
|
|
1205 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1206 | ++coro_nready; |
|
|
1207 | UNLOCK; |
|
|
1208 | |
|
|
1209 | return 1; |
|
|
1210 | } |
|
|
1211 | |
|
|
1212 | static int |
|
|
1213 | api_is_ready (SV *coro_sv) |
|
|
1214 | { |
|
|
1215 | dTHX; |
|
|
1216 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1217 | } |
|
|
1218 | |
953 | static void |
1219 | static void |
954 | api_ready (SV *coro) |
1220 | prepare_schedule (pTHX_ struct transfer_args *ta) |
955 | { |
1221 | { |
956 | dTHX; |
1222 | SV *prev_sv, *next_sv; |
957 | |
1223 | |
958 | if (SvROK (coro)) |
1224 | for (;;) |
959 | coro = SvRV (coro); |
1225 | { |
|
|
1226 | LOCK; |
|
|
1227 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1228 | |
|
|
1229 | /* nothing to schedule: call the idle handler */ |
|
|
1230 | if (!next_sv) |
|
|
1231 | { |
|
|
1232 | dSP; |
|
|
1233 | UNLOCK; |
|
|
1234 | |
|
|
1235 | ENTER; |
|
|
1236 | SAVETMPS; |
|
|
1237 | |
|
|
1238 | PUSHMARK (SP); |
|
|
1239 | PUTBACK; |
|
|
1240 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1241 | |
|
|
1242 | FREETMPS; |
|
|
1243 | LEAVE; |
|
|
1244 | continue; |
|
|
1245 | } |
|
|
1246 | |
|
|
1247 | ta->next = SvSTATE (next_sv); |
|
|
1248 | |
|
|
1249 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1250 | if (ta->next->flags & CF_DESTROYED) |
|
|
1251 | { |
|
|
1252 | UNLOCK; |
|
|
1253 | SvREFCNT_dec (next_sv); |
|
|
1254 | /* coro_nready is already taken care of by destroy */ |
|
|
1255 | continue; |
|
|
1256 | } |
|
|
1257 | |
|
|
1258 | --coro_nready; |
|
|
1259 | UNLOCK; |
|
|
1260 | break; |
|
|
1261 | } |
|
|
1262 | |
|
|
1263 | /* free this only after the transfer */ |
|
|
1264 | prev_sv = SvRV (coro_current); |
|
|
1265 | ta->prev = SvSTATE (prev_sv); |
|
|
1266 | TRANSFER_CHECK (*ta); |
|
|
1267 | assert (ta->next->flags & CF_READY); |
|
|
1268 | ta->next->flags &= ~CF_READY; |
|
|
1269 | SvRV_set (coro_current, next_sv); |
960 | |
1270 | |
961 | LOCK; |
1271 | LOCK; |
962 | coro_enq (SvREFCNT_inc (coro)); |
1272 | free_coro_mortal (aTHX); |
|
|
1273 | coro_mortal = prev_sv; |
963 | UNLOCK; |
1274 | UNLOCK; |
964 | } |
1275 | } |
965 | |
1276 | |
966 | static void |
1277 | static void |
967 | prepare_schedule (struct transfer_args *ta) |
|
|
968 | { |
|
|
969 | SV *current, *prev, *next; |
|
|
970 | |
|
|
971 | current = GvSV (coro_current); |
|
|
972 | |
|
|
973 | for (;;) |
|
|
974 | { |
|
|
975 | LOCK; |
|
|
976 | next = coro_deq (PRIO_MIN); |
|
|
977 | UNLOCK; |
|
|
978 | |
|
|
979 | if (next) |
|
|
980 | break; |
|
|
981 | |
|
|
982 | { |
|
|
983 | dSP; |
|
|
984 | |
|
|
985 | ENTER; |
|
|
986 | SAVETMPS; |
|
|
987 | |
|
|
988 | PUSHMARK (SP); |
|
|
989 | PUTBACK; |
|
|
990 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
991 | |
|
|
992 | FREETMPS; |
|
|
993 | LEAVE; |
|
|
994 | } |
|
|
995 | } |
|
|
996 | |
|
|
997 | prev = SvRV (current); |
|
|
998 | SvRV (current) = next; |
|
|
999 | |
|
|
1000 | /* free this only after the transfer */ |
|
|
1001 | LOCK; |
|
|
1002 | free_coro_mortal (); |
|
|
1003 | UNLOCK; |
|
|
1004 | coro_mortal = prev; |
|
|
1005 | |
|
|
1006 | ta->prev = SvSTATE (prev); |
|
|
1007 | ta->next = SvSTATE (next); |
|
|
1008 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
1009 | } |
|
|
1010 | |
|
|
1011 | static void |
|
|
1012 | prepare_cede (struct transfer_args *ta) |
1278 | prepare_cede (pTHX_ struct transfer_args *ta) |
1013 | { |
1279 | { |
1014 | LOCK; |
1280 | api_ready (coro_current); |
1015 | coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
1016 | UNLOCK; |
|
|
1017 | |
|
|
1018 | prepare_schedule (ta); |
1281 | prepare_schedule (aTHX_ ta); |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | static int |
|
|
1285 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1286 | { |
|
|
1287 | if (coro_nready) |
|
|
1288 | { |
|
|
1289 | SV *prev = SvRV (coro_current); |
|
|
1290 | prepare_schedule (aTHX_ ta); |
|
|
1291 | api_ready (prev); |
|
|
1292 | return 1; |
|
|
1293 | } |
|
|
1294 | else |
|
|
1295 | return 0; |
1019 | } |
1296 | } |
1020 | |
1297 | |
1021 | static void |
1298 | static void |
1022 | api_schedule (void) |
1299 | api_schedule (void) |
1023 | { |
1300 | { |
1024 | dTHX; |
1301 | dTHX; |
1025 | struct transfer_args ta; |
1302 | struct transfer_args ta; |
1026 | |
1303 | |
1027 | prepare_schedule (&ta); |
1304 | prepare_schedule (aTHX_ &ta); |
1028 | TRANSFER (ta); |
1305 | TRANSFER (ta); |
1029 | } |
1306 | } |
1030 | |
1307 | |
1031 | static void |
1308 | static int |
1032 | api_cede (void) |
1309 | api_cede (void) |
1033 | { |
1310 | { |
1034 | dTHX; |
1311 | dTHX; |
1035 | struct transfer_args ta; |
1312 | struct transfer_args ta; |
1036 | |
1313 | |
1037 | prepare_cede (&ta); |
1314 | prepare_cede (aTHX_ &ta); |
|
|
1315 | |
|
|
1316 | if (ta.prev != ta.next) |
|
|
1317 | { |
1038 | TRANSFER (ta); |
1318 | TRANSFER (ta); |
|
|
1319 | return 1; |
|
|
1320 | } |
|
|
1321 | else |
|
|
1322 | return 0; |
|
|
1323 | } |
|
|
1324 | |
|
|
1325 | static int |
|
|
1326 | api_cede_notself (void) |
|
|
1327 | { |
|
|
1328 | dTHX; |
|
|
1329 | struct transfer_args ta; |
|
|
1330 | |
|
|
1331 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1332 | { |
|
|
1333 | TRANSFER (ta); |
|
|
1334 | return 1; |
|
|
1335 | } |
|
|
1336 | else |
|
|
1337 | return 0; |
1039 | } |
1338 | } |
1040 | |
1339 | |
1041 | MODULE = Coro::State PACKAGE = Coro::State |
1340 | MODULE = Coro::State PACKAGE = Coro::State |
1042 | |
1341 | |
1043 | PROTOTYPES: DISABLE |
1342 | PROTOTYPES: DISABLE |
… | |
… | |
1049 | #endif |
1348 | #endif |
1050 | BOOT_PAGESIZE; |
1349 | BOOT_PAGESIZE; |
1051 | |
1350 | |
1052 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1351 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1053 | |
1352 | |
|
|
1353 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
|
|
1354 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
|
|
1355 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1356 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
|
|
1357 | |
1054 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1358 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1055 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1359 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
1056 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1360 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1361 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1362 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
|
|
1363 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
|
|
1364 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1057 | |
1365 | |
1058 | main_mainstack = PL_mainstack; |
1366 | main_mainstack = PL_mainstack; |
|
|
1367 | main_top_env = PL_top_env; |
|
|
1368 | |
|
|
1369 | while (main_top_env->je_prev) |
|
|
1370 | main_top_env = main_top_env->je_prev; |
1059 | |
1371 | |
1060 | coroapi.ver = CORO_API_VERSION; |
1372 | coroapi.ver = CORO_API_VERSION; |
1061 | coroapi.transfer = api_transfer; |
1373 | coroapi.transfer = api_transfer; |
1062 | |
1374 | |
1063 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1375 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
1071 | HV *hv; |
1383 | HV *hv; |
1072 | int i; |
1384 | int i; |
1073 | |
1385 | |
1074 | Newz (0, coro, 1, struct coro); |
1386 | Newz (0, coro, 1, struct coro); |
1075 | coro->args = newAV (); |
1387 | coro->args = newAV (); |
|
|
1388 | coro->save = CORO_SAVE_DEF; |
|
|
1389 | coro->flags = CF_NEW; |
1076 | |
1390 | |
|
|
1391 | if (coro_first) coro_first->prev = coro; |
|
|
1392 | coro->next = coro_first; |
|
|
1393 | coro_first = coro; |
|
|
1394 | |
1077 | hv = newHV (); |
1395 | coro->hv = hv = newHV (); |
1078 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1396 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1079 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1397 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1080 | |
1398 | |
1081 | for (i = 1; i < items; i++) |
1399 | for (i = 1; i < items; i++) |
1082 | av_push (coro->args, newSVsv (ST (i))); |
1400 | av_push (coro->args, newSVsv (ST (i))); |
1083 | } |
1401 | } |
1084 | OUTPUT: |
1402 | OUTPUT: |
|
|
1403 | RETVAL |
|
|
1404 | |
|
|
1405 | int |
|
|
1406 | save (SV *coro, int new_save = -1) |
|
|
1407 | CODE: |
|
|
1408 | RETVAL = api_save (coro, new_save); |
|
|
1409 | OUTPUT: |
|
|
1410 | RETVAL |
|
|
1411 | |
|
|
1412 | int |
|
|
1413 | save_also (SV *coro_sv, int save_also) |
|
|
1414 | CODE: |
|
|
1415 | { |
|
|
1416 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1417 | RETVAL = coro->save; |
|
|
1418 | coro->save |= save_also; |
|
|
1419 | } |
|
|
1420 | OUTPUT: |
1085 | RETVAL |
1421 | RETVAL |
1086 | |
1422 | |
1087 | void |
1423 | void |
1088 | _set_stacklevel (...) |
1424 | _set_stacklevel (...) |
1089 | ALIAS: |
1425 | ALIAS: |
1090 | Coro::State::transfer = 1 |
1426 | Coro::State::transfer = 1 |
1091 | Coro::schedule = 2 |
1427 | Coro::schedule = 2 |
1092 | Coro::cede = 3 |
1428 | Coro::cede = 3 |
1093 | Coro::Cont::yield = 4 |
1429 | Coro::cede_notself = 4 |
1094 | CODE: |
1430 | CODE: |
1095 | { |
1431 | { |
1096 | struct transfer_args ta; |
1432 | struct transfer_args ta; |
1097 | |
1433 | |
1098 | switch (ix) |
1434 | switch (ix) |
1099 | { |
1435 | { |
1100 | case 0: |
1436 | case 0: |
1101 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1437 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1102 | ta.next = 0; |
1438 | ta.next = 0; |
1103 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1104 | break; |
1439 | break; |
1105 | |
1440 | |
1106 | case 1: |
1441 | case 1: |
1107 | if (items != 3) |
1442 | if (items != 2) |
1108 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
1443 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1109 | |
1444 | |
1110 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
1445 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1111 | break; |
1446 | break; |
1112 | |
1447 | |
1113 | case 2: |
1448 | case 2: |
1114 | prepare_schedule (&ta); |
1449 | prepare_schedule (aTHX_ &ta); |
1115 | break; |
1450 | break; |
1116 | |
1451 | |
1117 | case 3: |
1452 | case 3: |
1118 | prepare_cede (&ta); |
1453 | prepare_cede (aTHX_ &ta); |
1119 | break; |
1454 | break; |
1120 | |
1455 | |
1121 | case 4: |
1456 | case 4: |
1122 | { |
1457 | if (!prepare_cede_notself (aTHX_ &ta)) |
1123 | SV *yieldstack; |
1458 | XSRETURN_EMPTY; |
1124 | SV *sv; |
|
|
1125 | AV *defav = GvAV (PL_defgv); |
|
|
1126 | |
1459 | |
1127 | yieldstack = *hv_fetch ( |
|
|
1128 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1129 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1130 | 0 |
|
|
1131 | ); |
|
|
1132 | |
|
|
1133 | /* set up @_ -- ugly */ |
|
|
1134 | av_clear (defav); |
|
|
1135 | av_fill (defav, items - 1); |
|
|
1136 | while (items--) |
|
|
1137 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1138 | |
|
|
1139 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1140 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1141 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1142 | ta.flags = 0; |
|
|
1143 | SvREFCNT_dec (sv); |
|
|
1144 | } |
|
|
1145 | break; |
1460 | break; |
1146 | |
|
|
1147 | } |
1461 | } |
1148 | |
1462 | |
|
|
1463 | BARRIER; |
1149 | TRANSFER (ta); |
1464 | TRANSFER (ta); |
1150 | } |
|
|
1151 | |
1465 | |
1152 | void |
1466 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
1153 | _clone_state_from (SV *dst, SV *src) |
1467 | XSRETURN_YES; |
|
|
1468 | } |
|
|
1469 | |
|
|
1470 | bool |
|
|
1471 | _destroy (SV *coro_sv) |
1154 | CODE: |
1472 | CODE: |
1155 | { |
1473 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1156 | struct coro *coro_src = SvSTATE (src); |
1474 | OUTPUT: |
1157 | |
1475 | RETVAL |
1158 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1159 | |
|
|
1160 | ++coro_src->refcnt; |
|
|
1161 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1162 | } |
|
|
1163 | |
1476 | |
1164 | void |
1477 | void |
1165 | _exit (code) |
1478 | _exit (code) |
1166 | int code |
1479 | int code |
1167 | PROTOTYPE: $ |
1480 | PROTOTYPE: $ |
1168 | CODE: |
1481 | CODE: |
1169 | _exit (code); |
1482 | _exit (code); |
1170 | |
1483 | |
1171 | int |
1484 | int |
|
|
1485 | cctx_stacksize (int new_stacksize = 0) |
|
|
1486 | CODE: |
|
|
1487 | RETVAL = coro_stacksize; |
|
|
1488 | if (new_stacksize) |
|
|
1489 | coro_stacksize = new_stacksize; |
|
|
1490 | OUTPUT: |
|
|
1491 | RETVAL |
|
|
1492 | |
|
|
1493 | int |
1172 | cctx_count () |
1494 | cctx_count () |
1173 | CODE: |
1495 | CODE: |
1174 | RETVAL = cctx_count; |
1496 | RETVAL = cctx_count; |
1175 | OUTPUT: |
1497 | OUTPUT: |
1176 | RETVAL |
1498 | RETVAL |
… | |
… | |
1180 | CODE: |
1502 | CODE: |
1181 | RETVAL = cctx_idle; |
1503 | RETVAL = cctx_idle; |
1182 | OUTPUT: |
1504 | OUTPUT: |
1183 | RETVAL |
1505 | RETVAL |
1184 | |
1506 | |
|
|
1507 | void |
|
|
1508 | list () |
|
|
1509 | PPCODE: |
|
|
1510 | { |
|
|
1511 | struct coro *coro; |
|
|
1512 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1513 | if (coro->hv) |
|
|
1514 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1515 | } |
|
|
1516 | |
|
|
1517 | void |
|
|
1518 | call (Coro::State coro, SV *coderef) |
|
|
1519 | ALIAS: |
|
|
1520 | eval = 1 |
|
|
1521 | CODE: |
|
|
1522 | { |
|
|
1523 | if (coro->mainstack) |
|
|
1524 | { |
|
|
1525 | struct coro temp; |
|
|
1526 | Zero (&temp, 1, struct coro); |
|
|
1527 | temp.save = CORO_SAVE_ALL; |
|
|
1528 | |
|
|
1529 | if (!(coro->flags & CF_RUNNING)) |
|
|
1530 | { |
|
|
1531 | save_perl (aTHX_ &temp); |
|
|
1532 | load_perl (aTHX_ coro); |
|
|
1533 | } |
|
|
1534 | |
|
|
1535 | { |
|
|
1536 | dSP; |
|
|
1537 | ENTER; |
|
|
1538 | SAVETMPS; |
|
|
1539 | PUSHMARK (SP); |
|
|
1540 | PUTBACK; |
|
|
1541 | if (ix) |
|
|
1542 | eval_sv (coderef, 0); |
|
|
1543 | else |
|
|
1544 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1545 | SPAGAIN; |
|
|
1546 | FREETMPS; |
|
|
1547 | LEAVE; |
|
|
1548 | PUTBACK; |
|
|
1549 | } |
|
|
1550 | |
|
|
1551 | if (!(coro->flags & CF_RUNNING)) |
|
|
1552 | { |
|
|
1553 | save_perl (aTHX_ coro); |
|
|
1554 | load_perl (aTHX_ &temp); |
|
|
1555 | } |
|
|
1556 | } |
|
|
1557 | } |
|
|
1558 | |
|
|
1559 | SV * |
|
|
1560 | is_ready (Coro::State coro) |
|
|
1561 | PROTOTYPE: $ |
|
|
1562 | ALIAS: |
|
|
1563 | is_ready = CF_READY |
|
|
1564 | is_running = CF_RUNNING |
|
|
1565 | is_new = CF_NEW |
|
|
1566 | is_destroyed = CF_DESTROYED |
|
|
1567 | CODE: |
|
|
1568 | RETVAL = boolSV (coro->flags & ix); |
|
|
1569 | OUTPUT: |
|
|
1570 | RETVAL |
|
|
1571 | |
|
|
1572 | void |
|
|
1573 | trace (Coro::State coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1574 | CODE: |
|
|
1575 | if (flags & CC_TRACE) |
|
|
1576 | { |
|
|
1577 | if (!coro->cctx) |
|
|
1578 | coro->cctx = cctx_new (); |
|
|
1579 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1580 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1581 | |
|
|
1582 | coro->cctx->flags |= flags & (CC_TRACE | CC_TRACE_ALL); |
|
|
1583 | } |
|
|
1584 | else |
|
|
1585 | if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1586 | { |
|
|
1587 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1588 | coro->cctx->flags |= CC_NOREUSE; |
|
|
1589 | |
|
|
1590 | if (coro->flags & CF_RUNNING) |
|
|
1591 | PL_runops = RUNOPS_DEFAULT; |
|
|
1592 | else |
|
|
1593 | coro->runops = RUNOPS_DEFAULT; |
|
|
1594 | } |
|
|
1595 | |
|
|
1596 | SV * |
|
|
1597 | has_stack (Coro::State coro) |
|
|
1598 | PROTOTYPE: $ |
|
|
1599 | CODE: |
|
|
1600 | RETVAL = boolSV (!!coro->cctx); |
|
|
1601 | OUTPUT: |
|
|
1602 | RETVAL |
|
|
1603 | |
|
|
1604 | int |
|
|
1605 | is_traced (Coro::State coro) |
|
|
1606 | PROTOTYPE: $ |
|
|
1607 | CODE: |
|
|
1608 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1609 | OUTPUT: |
|
|
1610 | RETVAL |
|
|
1611 | |
|
|
1612 | IV |
|
|
1613 | rss (Coro::State coro) |
|
|
1614 | PROTOTYPE: $ |
|
|
1615 | CODE: |
|
|
1616 | RETVAL = coro_rss (aTHX_ coro); |
|
|
1617 | OUTPUT: |
|
|
1618 | RETVAL |
|
|
1619 | |
|
|
1620 | |
1185 | MODULE = Coro::State PACKAGE = Coro |
1621 | MODULE = Coro::State PACKAGE = Coro |
1186 | |
1622 | |
1187 | BOOT: |
1623 | BOOT: |
1188 | { |
1624 | { |
1189 | int i; |
1625 | int i; |
|
|
1626 | |
|
|
1627 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1628 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1629 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
|
|
1630 | |
|
|
1631 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1632 | SvREADONLY_on (coro_current); |
1190 | |
1633 | |
1191 | coro_stash = gv_stashpv ("Coro", TRUE); |
1634 | coro_stash = gv_stashpv ("Coro", TRUE); |
1192 | |
1635 | |
1193 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1636 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1194 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1637 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1195 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1638 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1196 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1639 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1197 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1640 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1198 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1641 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1199 | |
1642 | |
1200 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1201 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1202 | |
|
|
1203 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1643 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1204 | coro_ready[i] = newAV (); |
1644 | coro_ready[i] = newAV (); |
1205 | |
1645 | |
1206 | { |
1646 | { |
1207 | SV *sv = perl_get_sv("Coro::API", 1); |
1647 | SV *sv = perl_get_sv("Coro::API", 1); |
1208 | |
1648 | |
1209 | coroapi.schedule = api_schedule; |
1649 | coroapi.schedule = api_schedule; |
|
|
1650 | coroapi.save = api_save; |
1210 | coroapi.cede = api_cede; |
1651 | coroapi.cede = api_cede; |
|
|
1652 | coroapi.cede_notself = api_cede_notself; |
1211 | coroapi.ready = api_ready; |
1653 | coroapi.ready = api_ready; |
|
|
1654 | coroapi.is_ready = api_is_ready; |
1212 | coroapi.nready = &coro_nready; |
1655 | coroapi.nready = &coro_nready; |
1213 | coroapi.current = coro_current; |
1656 | coroapi.current = coro_current; |
1214 | |
1657 | |
1215 | GCoroAPI = &coroapi; |
1658 | GCoroAPI = &coroapi; |
1216 | sv_setiv (sv, (IV)&coroapi); |
1659 | sv_setiv (sv, (IV)&coroapi); |
1217 | SvREADONLY_on (sv); |
1660 | SvREADONLY_on (sv); |
1218 | } |
1661 | } |
1219 | } |
1662 | } |
|
|
1663 | |
|
|
1664 | void |
|
|
1665 | _set_current (SV *current) |
|
|
1666 | PROTOTYPE: $ |
|
|
1667 | CODE: |
|
|
1668 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1669 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1220 | |
1670 | |
1221 | int |
1671 | int |
1222 | prio (Coro::State coro, int newprio = 0) |
1672 | prio (Coro::State coro, int newprio = 0) |
1223 | ALIAS: |
1673 | ALIAS: |
1224 | nice = 1 |
1674 | nice = 1 |
… | |
… | |
1227 | RETVAL = coro->prio; |
1677 | RETVAL = coro->prio; |
1228 | |
1678 | |
1229 | if (items > 1) |
1679 | if (items > 1) |
1230 | { |
1680 | { |
1231 | if (ix) |
1681 | if (ix) |
1232 | newprio += coro->prio; |
1682 | newprio = coro->prio - newprio; |
1233 | |
1683 | |
1234 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1684 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1235 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1685 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1236 | |
1686 | |
1237 | coro->prio = newprio; |
1687 | coro->prio = newprio; |
1238 | } |
1688 | } |
1239 | } |
1689 | } |
|
|
1690 | OUTPUT: |
|
|
1691 | RETVAL |
1240 | |
1692 | |
1241 | void |
1693 | SV * |
1242 | ready (SV *self) |
1694 | ready (SV *self) |
1243 | PROTOTYPE: $ |
1695 | PROTOTYPE: $ |
1244 | CODE: |
1696 | CODE: |
1245 | api_ready (self); |
1697 | RETVAL = boolSV (api_ready (self)); |
|
|
1698 | OUTPUT: |
|
|
1699 | RETVAL |
1246 | |
1700 | |
1247 | int |
1701 | int |
1248 | nready (...) |
1702 | nready (...) |
1249 | PROTOTYPE: |
1703 | PROTOTYPE: |
1250 | CODE: |
1704 | CODE: |
1251 | RETVAL = coro_nready; |
1705 | RETVAL = coro_nready; |
1252 | OUTPUT: |
1706 | OUTPUT: |
1253 | RETVAL |
1707 | RETVAL |
1254 | |
1708 | |
|
|
1709 | # for async_pool speedup |
|
|
1710 | void |
|
|
1711 | _pool_1 (SV *cb) |
|
|
1712 | CODE: |
|
|
1713 | { |
|
|
1714 | int i, len; |
|
|
1715 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1716 | AV *defav = GvAV (PL_defgv); |
|
|
1717 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1718 | AV *invoke_av; |
|
|
1719 | |
|
|
1720 | if (!invoke) |
|
|
1721 | croak ("\3terminate\2\n"); |
|
|
1722 | |
|
|
1723 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1724 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1725 | |
|
|
1726 | invoke_av = (AV *)SvRV (invoke); |
|
|
1727 | len = av_len (invoke_av); |
|
|
1728 | |
|
|
1729 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1730 | |
|
|
1731 | if (len > 0) |
|
|
1732 | { |
|
|
1733 | av_fill (defav, len - 1); |
|
|
1734 | for (i = 0; i < len; ++i) |
|
|
1735 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1736 | } |
|
|
1737 | |
|
|
1738 | SvREFCNT_dec (invoke); |
|
|
1739 | } |
|
|
1740 | |
|
|
1741 | void |
|
|
1742 | _pool_2 (SV *cb) |
|
|
1743 | CODE: |
|
|
1744 | { |
|
|
1745 | struct coro *coro = SvSTATE (coro_current); |
|
|
1746 | |
|
|
1747 | sv_setsv (cb, &PL_sv_undef); |
|
|
1748 | |
|
|
1749 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1750 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1751 | croak ("\3terminate\2\n"); |
|
|
1752 | |
|
|
1753 | av_clear (GvAV (PL_defgv)); |
|
|
1754 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1755 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1756 | coro->save = CORO_SAVE_DEF; |
|
|
1757 | coro->prio = 0; |
|
|
1758 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1759 | } |
|
|
1760 | |
|
|
1761 | |
1255 | MODULE = Coro::State PACKAGE = Coro::AIO |
1762 | MODULE = Coro::State PACKAGE = Coro::AIO |
1256 | |
1763 | |
1257 | SV * |
1764 | SV * |
1258 | _get_state () |
1765 | _get_state () |
1259 | CODE: |
1766 | CODE: |
1260 | { |
1767 | { |
1261 | struct { |
1768 | struct io_state *data; |
1262 | int errorno; |
|
|
1263 | int laststype; |
|
|
1264 | int laststatval; |
|
|
1265 | Stat_t statcache; |
|
|
1266 | } data; |
|
|
1267 | |
1769 | |
|
|
1770 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1771 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1772 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1773 | SvPOK_only (RETVAL); |
|
|
1774 | |
1268 | data.errorno = errno; |
1775 | data->errorno = errno; |
1269 | data.laststype = PL_laststype; |
1776 | data->laststype = PL_laststype; |
1270 | data.laststatval = PL_laststatval; |
1777 | data->laststatval = PL_laststatval; |
1271 | data.statcache = PL_statcache; |
1778 | data->statcache = PL_statcache; |
1272 | |
|
|
1273 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1274 | } |
1779 | } |
1275 | OUTPUT: |
1780 | OUTPUT: |
1276 | RETVAL |
1781 | RETVAL |
1277 | |
1782 | |
1278 | void |
1783 | void |
1279 | _set_state (char *data_) |
1784 | _set_state (char *data_) |
1280 | PROTOTYPE: $ |
1785 | PROTOTYPE: $ |
1281 | CODE: |
1786 | CODE: |
1282 | { |
1787 | { |
1283 | struct { |
1788 | struct io_state *data = (void *)data_; |
1284 | int errorno; |
|
|
1285 | int laststype; |
|
|
1286 | int laststatval; |
|
|
1287 | Stat_t statcache; |
|
|
1288 | } *data = (void *)data_; |
|
|
1289 | |
1789 | |
1290 | errno = data->errorno; |
1790 | errno = data->errorno; |
1291 | PL_laststype = data->laststype; |
1791 | PL_laststype = data->laststype; |
1292 | PL_laststatval = data->laststatval; |
1792 | PL_laststatval = data->laststatval; |
1293 | PL_statcache = data->statcache; |
1793 | PL_statcache = data->statcache; |
1294 | } |
1794 | } |
|
|
1795 | |