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 | /* 5.8.8 */ |
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81 | #ifndef GV_NOTQUAL |
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82 | # define GV_NOTQUAL 0 |
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83 | #endif |
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84 | #ifndef newSV |
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85 | # define newSV(l) NEWSV(0,l) |
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86 | #endif |
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87 | |
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88 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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89 | # undef CORO_STACKGUARD |
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90 | #endif |
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91 | |
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92 | #ifndef CORO_STACKGUARD |
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93 | # define CORO_STACKGUARD 0 |
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94 | #endif |
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95 | |
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96 | /* prefer perl internal functions over our own? */ |
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97 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
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98 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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99 | #endif |
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100 | |
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101 | /* The next macros try to return the current stack pointer, in an as |
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102 | * portable way as possible. */ |
77 | #define dSTACKLEVEL int stacklevel |
103 | #define dSTACKLEVEL volatile char stacklevel |
78 | #define STACKLEVEL ((void *)&stacklevel) |
104 | #define STACKLEVEL ((void *)&stacklevel) |
79 | |
105 | |
80 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
106 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
81 | |
107 | |
82 | #if __GNUC__ >= 3 |
108 | #if __GNUC__ >= 3 |
83 | # define attribute(x) __attribute__(x) |
109 | # define attribute(x) __attribute__(x) |
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110 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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111 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
84 | #else |
112 | #else |
85 | # define attribute(x) |
113 | # define attribute(x) |
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114 | # define BARRIER |
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115 | # define expect(expr,value) (expr) |
86 | #endif |
116 | #endif |
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117 | |
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118 | #define expect_false(expr) expect ((expr) != 0, 0) |
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119 | #define expect_true(expr) expect ((expr) != 0, 1) |
87 | |
120 | |
88 | #define NOINLINE attribute ((noinline)) |
121 | #define NOINLINE attribute ((noinline)) |
89 | |
122 | |
90 | #include "CoroAPI.h" |
123 | #include "CoroAPI.h" |
91 | |
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92 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
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93 | |
124 | |
94 | #ifdef USE_ITHREADS |
125 | #ifdef USE_ITHREADS |
95 | static perl_mutex coro_mutex; |
126 | static perl_mutex coro_mutex; |
96 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
127 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
97 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
128 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
98 | #else |
129 | #else |
99 | # define LOCK (void)0 |
130 | # define LOCK (void)0 |
100 | # define UNLOCK (void)0 |
131 | # define UNLOCK (void)0 |
101 | #endif |
132 | #endif |
102 | |
133 | |
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134 | /* helper storage struct for Coro::AIO */ |
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135 | struct io_state |
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136 | { |
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137 | int errorno; |
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138 | I32 laststype; |
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139 | int laststatval; |
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140 | Stat_t statcache; |
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141 | }; |
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142 | |
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143 | static size_t coro_stacksize = CORO_STACKSIZE; |
103 | static struct CoroAPI coroapi; |
144 | static struct CoroAPI coroapi; |
104 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
145 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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146 | static JMPENV *main_top_env; |
105 | static HV *coro_state_stash, *coro_stash; |
147 | static HV *coro_state_stash, *coro_stash; |
106 | static SV *coro_mortal; /* will be freed after next transfer */ |
148 | static SV *coro_mortal; /* will be freed after next transfer */ |
107 | |
149 | |
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150 | static GV *irsgv; /* $/ */ |
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151 | static GV *stdoutgv; /* *STDOUT */ |
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152 | |
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153 | /* async_pool helper stuff */ |
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154 | static SV *sv_pool_rss; |
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155 | static SV *sv_pool_size; |
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156 | static AV *av_async_pool; |
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157 | |
108 | static struct coro_cctx *cctx_first; |
158 | static struct coro_cctx *cctx_first; |
109 | static int cctx_count, cctx_idle; |
159 | static int cctx_count, cctx_idle; |
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160 | |
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161 | enum { |
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162 | CC_MAPPED = 0x01, |
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163 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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164 | CC_TRACE = 0x04, |
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165 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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166 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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167 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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168 | }; |
110 | |
169 | |
111 | /* this is a structure representing a c-level coroutine */ |
170 | /* this is a structure representing a c-level coroutine */ |
112 | typedef struct coro_cctx { |
171 | typedef struct coro_cctx { |
113 | struct coro_cctx *next; |
172 | struct coro_cctx *next; |
114 | |
173 | |
115 | /* the stack */ |
174 | /* the stack */ |
116 | void *sptr; |
175 | void *sptr; |
117 | long ssize; /* positive == mmap, otherwise malloc */ |
176 | size_t ssize; |
118 | |
177 | |
119 | /* cpu state */ |
178 | /* cpu state */ |
120 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
179 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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180 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
121 | JMPENV *top_env; |
181 | JMPENV *top_env; |
122 | coro_context cctx; |
182 | coro_context cctx; |
123 | |
183 | |
124 | int inuse; |
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125 | |
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126 | #if USE_VALGRIND |
184 | #if CORO_USE_VALGRIND |
127 | int valgrind_id; |
185 | int valgrind_id; |
128 | #endif |
186 | #endif |
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187 | unsigned char flags; |
129 | } coro_cctx; |
188 | } coro_cctx; |
130 | |
189 | |
131 | enum { |
190 | enum { |
132 | CF_RUNNING, /* coroutine is running */ |
191 | CF_RUNNING = 0x0001, /* coroutine is running */ |
133 | CF_READY, /* coroutine is ready */ |
192 | CF_READY = 0x0002, /* coroutine is ready */ |
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193 | CF_NEW = 0x0004, /* has never been switched to */ |
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194 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
134 | }; |
195 | }; |
135 | |
196 | |
136 | /* this is a structure representing a perl-level coroutine */ |
197 | /* this is a structure representing a perl-level coroutine */ |
137 | struct coro { |
198 | struct coro { |
138 | /* the c coroutine allocated to this perl coroutine, if any */ |
199 | /* the c coroutine allocated to this perl coroutine, if any */ |
139 | coro_cctx *cctx; |
200 | coro_cctx *cctx; |
140 | |
201 | |
141 | /* data associated with this coroutine (initial args) */ |
202 | /* data associated with this coroutine (initial args) */ |
142 | AV *args; |
203 | AV *args; |
143 | int refcnt; |
204 | int refcnt; |
144 | int flags; |
205 | int flags; /* CF_ flags */ |
145 | |
206 | |
146 | /* optionally saved, might be zero */ |
207 | /* optionally saved, might be zero */ |
147 | AV *defav; |
208 | AV *defav; /* @_ */ |
148 | SV *defsv; |
209 | SV *defsv; /* $_ */ |
149 | SV *errsv; |
210 | SV *errsv; /* $@ */ |
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211 | SV *deffh; /* default filehandle */ |
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212 | SV *irssv; /* $/ */ |
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213 | SV *irssv_sv; /* real $/ cache */ |
150 | |
214 | |
151 | #define VAR(name,type) type name; |
215 | #define VAR(name,type) type name; |
152 | # include "state.h" |
216 | # include "state.h" |
153 | #undef VAR |
217 | #undef VAR |
154 | |
218 | |
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219 | /* statistics */ |
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220 | int usecount; /* number of transfers to this coro */ |
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221 | |
155 | /* coro process data */ |
222 | /* coro process data */ |
156 | int prio; |
223 | int prio; |
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224 | SV *throw; |
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225 | |
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226 | /* async_pool */ |
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227 | SV *saved_deffh; |
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228 | |
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229 | /* linked list */ |
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230 | struct coro *next, *prev; |
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231 | HV *hv; /* the perl hash associated with this coro, if any */ |
157 | }; |
232 | }; |
158 | |
233 | |
159 | typedef struct coro *Coro__State; |
234 | typedef struct coro *Coro__State; |
160 | typedef struct coro *Coro__State_or_hashref; |
235 | typedef struct coro *Coro__State_or_hashref; |
161 | |
236 | |
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237 | /** Coro ********************************************************************/ |
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238 | |
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239 | #define PRIO_MAX 3 |
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240 | #define PRIO_HIGH 1 |
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241 | #define PRIO_NORMAL 0 |
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242 | #define PRIO_LOW -1 |
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243 | #define PRIO_IDLE -3 |
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244 | #define PRIO_MIN -4 |
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245 | |
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246 | /* for Coro.pm */ |
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247 | static SV *coro_current; |
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248 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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249 | static int coro_nready; |
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250 | static struct coro *coro_first; |
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251 | |
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252 | /** lowlevel stuff **********************************************************/ |
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253 | |
162 | static AV * |
254 | static AV * |
163 | coro_clone_padlist (CV *cv) |
255 | coro_clone_padlist (pTHX_ CV *cv) |
164 | { |
256 | { |
165 | AV *padlist = CvPADLIST (cv); |
257 | AV *padlist = CvPADLIST (cv); |
166 | AV *newpadlist, *newpad; |
258 | AV *newpadlist, *newpad; |
167 | |
259 | |
168 | newpadlist = newAV (); |
260 | newpadlist = newAV (); |
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180 | |
272 | |
181 | return newpadlist; |
273 | return newpadlist; |
182 | } |
274 | } |
183 | |
275 | |
184 | static void |
276 | static void |
185 | free_padlist (AV *padlist) |
277 | free_padlist (pTHX_ AV *padlist) |
186 | { |
278 | { |
187 | /* may be during global destruction */ |
279 | /* may be during global destruction */ |
188 | if (SvREFCNT (padlist)) |
280 | if (SvREFCNT (padlist)) |
189 | { |
281 | { |
190 | I32 i = AvFILLp (padlist); |
282 | I32 i = AvFILLp (padlist); |
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211 | AV *padlist; |
303 | AV *padlist; |
212 | AV *av = (AV *)mg->mg_obj; |
304 | AV *av = (AV *)mg->mg_obj; |
213 | |
305 | |
214 | /* casting is fun. */ |
306 | /* casting is fun. */ |
215 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
307 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
216 | free_padlist (padlist); |
308 | free_padlist (aTHX_ padlist); |
217 | |
309 | |
218 | SvREFCNT_dec (av); |
310 | SvREFCNT_dec (av); |
219 | |
311 | |
220 | return 0; |
312 | return 0; |
221 | } |
313 | } |
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229 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
321 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
230 | ? SvMAGIC (cv) \ |
322 | ? SvMAGIC (cv) \ |
231 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
323 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
232 | : 0 |
324 | : 0 |
233 | |
325 | |
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326 | static struct coro * |
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327 | SvSTATE_ (pTHX_ SV *coro) |
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328 | { |
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329 | HV *stash; |
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330 | MAGIC *mg; |
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331 | |
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332 | if (SvROK (coro)) |
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333 | coro = SvRV (coro); |
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334 | |
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335 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
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336 | croak ("Coro::State object required"); |
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337 | |
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338 | stash = SvSTASH (coro); |
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339 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
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340 | { |
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341 | /* very slow, but rare, check */ |
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342 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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343 | croak ("Coro::State object required"); |
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344 | } |
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345 | |
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346 | mg = CORO_MAGIC (coro); |
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347 | return (struct coro *)mg->mg_ptr; |
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348 | } |
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349 | |
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350 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
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351 | |
234 | /* the next two functions merely cache the padlists */ |
352 | /* the next two functions merely cache the padlists */ |
235 | static void |
353 | static void |
236 | get_padlist (CV *cv) |
354 | get_padlist (pTHX_ CV *cv) |
237 | { |
355 | { |
238 | MAGIC *mg = CORO_MAGIC (cv); |
356 | MAGIC *mg = CORO_MAGIC (cv); |
239 | AV *av; |
357 | AV *av; |
240 | |
358 | |
241 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
359 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
242 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
360 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
243 | else |
361 | else |
244 | { |
362 | { |
245 | #if 0 |
363 | #if CORO_PREFER_PERL_FUNCTIONS |
246 | /* this is probably cleaner, but also slower? */ |
364 | /* this is probably cleaner, but also slower? */ |
247 | CV *cp = Perl_cv_clone (cv); |
365 | CV *cp = Perl_cv_clone (cv); |
248 | CvPADLIST (cv) = CvPADLIST (cp); |
366 | CvPADLIST (cv) = CvPADLIST (cp); |
249 | CvPADLIST (cp) = 0; |
367 | CvPADLIST (cp) = 0; |
250 | SvREFCNT_dec (cp); |
368 | SvREFCNT_dec (cp); |
251 | #else |
369 | #else |
252 | CvPADLIST (cv) = coro_clone_padlist (cv); |
370 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
253 | #endif |
371 | #endif |
254 | } |
372 | } |
255 | } |
373 | } |
256 | |
374 | |
257 | static void |
375 | static void |
258 | put_padlist (CV *cv) |
376 | put_padlist (pTHX_ CV *cv) |
259 | { |
377 | { |
260 | MAGIC *mg = CORO_MAGIC (cv); |
378 | MAGIC *mg = CORO_MAGIC (cv); |
261 | AV *av; |
379 | AV *av; |
262 | |
380 | |
263 | if (!mg) |
381 | if (expect_false (!mg)) |
264 | { |
382 | { |
265 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
383 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
266 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
384 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
267 | mg->mg_virtual = &vtbl_coro; |
385 | mg->mg_virtual = &vtbl_coro; |
268 | mg->mg_obj = (SV *)newAV (); |
386 | mg->mg_obj = (SV *)newAV (); |
269 | } |
387 | } |
270 | |
388 | |
271 | av = (AV *)mg->mg_obj; |
389 | av = (AV *)mg->mg_obj; |
272 | |
390 | |
273 | if (AvFILLp (av) >= AvMAX (av)) |
391 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
274 | av_extend (av, AvMAX (av) + 1); |
392 | av_extend (av, AvMAX (av) + 1); |
275 | |
393 | |
276 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
394 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
277 | } |
395 | } |
278 | |
396 | |
279 | #define SB do { |
397 | /** load & save, init *******************************************************/ |
280 | #define SE } while (0) |
|
|
281 | |
398 | |
282 | #define LOAD(state) load_state((state)); |
|
|
283 | #define SAVE(state,flags) save_state((state),(flags)); |
|
|
284 | |
|
|
285 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
|
|
286 | |
|
|
287 | static void |
399 | static void |
288 | load_state(Coro__State c) |
400 | load_perl (pTHX_ Coro__State c) |
289 | { |
401 | { |
290 | #define VAR(name,type) PL_ ## name = c->name; |
402 | #define VAR(name,type) PL_ ## name = c->name; |
291 | # include "state.h" |
403 | # include "state.h" |
292 | #undef VAR |
404 | #undef VAR |
293 | |
405 | |
294 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
406 | GvSV (PL_defgv) = c->defsv; |
295 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
407 | GvAV (PL_defgv) = c->defav; |
296 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
408 | GvSV (PL_errgv) = c->errsv; |
|
|
409 | GvSV (irsgv) = c->irssv_sv; |
297 | |
410 | |
298 | { |
411 | { |
299 | dSP; |
412 | dSP; |
300 | CV *cv; |
413 | CV *cv; |
301 | |
414 | |
302 | /* now do the ugly restore mess */ |
415 | /* now do the ugly restore mess */ |
303 | while ((cv = (CV *)POPs)) |
416 | while (expect_true (cv = (CV *)POPs)) |
304 | { |
417 | { |
305 | put_padlist (cv); /* mark this padlist as available */ |
418 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
306 | CvDEPTH (cv) = PTR2IV (POPs); |
419 | CvDEPTH (cv) = PTR2IV (POPs); |
307 | CvPADLIST (cv) = (AV *)POPs; |
420 | CvPADLIST (cv) = (AV *)POPs; |
308 | } |
421 | } |
309 | |
422 | |
310 | PUTBACK; |
423 | PUTBACK; |
311 | } |
424 | } |
312 | } |
425 | } |
313 | |
426 | |
314 | static void |
427 | static void |
315 | save_state(Coro__State c, int flags) |
428 | save_perl (pTHX_ Coro__State c) |
316 | { |
429 | { |
317 | { |
430 | { |
318 | dSP; |
431 | dSP; |
319 | I32 cxix = cxstack_ix; |
432 | I32 cxix = cxstack_ix; |
320 | PERL_CONTEXT *ccstk = cxstack; |
433 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
323 | /* |
436 | /* |
324 | * the worst thing you can imagine happens first - we have to save |
437 | * the worst thing you can imagine happens first - we have to save |
325 | * (and reinitialize) all cv's in the whole callchain :( |
438 | * (and reinitialize) all cv's in the whole callchain :( |
326 | */ |
439 | */ |
327 | |
440 | |
328 | PUSHs (Nullsv); |
441 | XPUSHs (Nullsv); |
329 | /* this loop was inspired by pp_caller */ |
442 | /* this loop was inspired by pp_caller */ |
330 | for (;;) |
443 | for (;;) |
331 | { |
444 | { |
332 | while (cxix >= 0) |
445 | while (expect_true (cxix >= 0)) |
333 | { |
446 | { |
334 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
447 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
335 | |
448 | |
336 | if (CxTYPE(cx) == CXt_SUB) |
449 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
337 | { |
450 | { |
338 | CV *cv = cx->blk_sub.cv; |
451 | CV *cv = cx->blk_sub.cv; |
339 | |
452 | |
340 | if (CvDEPTH (cv)) |
453 | if (expect_true (CvDEPTH (cv))) |
341 | { |
454 | { |
342 | EXTEND (SP, 3); |
455 | EXTEND (SP, 3); |
343 | |
|
|
344 | PUSHs ((SV *)CvPADLIST(cv)); |
456 | PUSHs ((SV *)CvPADLIST (cv)); |
345 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
457 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
346 | PUSHs ((SV *)cv); |
458 | PUSHs ((SV *)cv); |
347 | |
459 | |
348 | CvDEPTH (cv) = 0; |
460 | CvDEPTH (cv) = 0; |
349 | get_padlist (cv); |
461 | get_padlist (aTHX_ cv); |
350 | } |
462 | } |
351 | } |
463 | } |
352 | #ifdef CXt_FORMAT |
|
|
353 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
354 | { |
|
|
355 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
356 | /* my bold guess is as a simple, plain sub... */ |
|
|
357 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
358 | } |
|
|
359 | #endif |
|
|
360 | } |
464 | } |
361 | |
465 | |
362 | if (top_si->si_type == PERLSI_MAIN) |
466 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
363 | break; |
467 | break; |
364 | |
468 | |
365 | top_si = top_si->si_prev; |
469 | top_si = top_si->si_prev; |
366 | ccstk = top_si->si_cxstack; |
470 | ccstk = top_si->si_cxstack; |
367 | cxix = top_si->si_cxix; |
471 | cxix = top_si->si_cxix; |
368 | } |
472 | } |
369 | |
473 | |
370 | PUTBACK; |
474 | PUTBACK; |
371 | } |
475 | } |
372 | |
476 | |
373 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
477 | c->defav = GvAV (PL_defgv); |
374 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
478 | c->defsv = DEFSV; |
375 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
479 | c->errsv = ERRSV; |
|
|
480 | c->irssv_sv = GvSV (irsgv); |
376 | |
481 | |
377 | #define VAR(name,type)c->name = PL_ ## name; |
482 | #define VAR(name,type)c->name = PL_ ## name; |
378 | # include "state.h" |
483 | # include "state.h" |
379 | #undef VAR |
484 | #undef VAR |
380 | } |
485 | } |
… | |
… | |
383 | * allocate various perl stacks. This is an exact copy |
488 | * allocate various perl stacks. This is an exact copy |
384 | * of perl.c:init_stacks, except that it uses less memory |
489 | * of perl.c:init_stacks, except that it uses less memory |
385 | * on the (sometimes correct) assumption that coroutines do |
490 | * on the (sometimes correct) assumption that coroutines do |
386 | * not usually need a lot of stackspace. |
491 | * not usually need a lot of stackspace. |
387 | */ |
492 | */ |
|
|
493 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
494 | # define coro_init_stacks init_stacks |
|
|
495 | #else |
388 | static void |
496 | static void |
389 | coro_init_stacks () |
497 | coro_init_stacks (pTHX) |
390 | { |
498 | { |
391 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
499 | PL_curstackinfo = new_stackinfo(64, 6); |
392 | PL_curstackinfo->si_type = PERLSI_MAIN; |
500 | PL_curstackinfo->si_type = PERLSI_MAIN; |
393 | PL_curstack = PL_curstackinfo->si_stack; |
501 | PL_curstack = PL_curstackinfo->si_stack; |
394 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
502 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
395 | |
503 | |
396 | PL_stack_base = AvARRAY(PL_curstack); |
504 | PL_stack_base = AvARRAY(PL_curstack); |
397 | PL_stack_sp = PL_stack_base; |
505 | PL_stack_sp = PL_stack_base; |
398 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
506 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
399 | |
507 | |
400 | New(50,PL_tmps_stack,96,SV*); |
508 | New(50,PL_tmps_stack,64,SV*); |
401 | PL_tmps_floor = -1; |
509 | PL_tmps_floor = -1; |
402 | PL_tmps_ix = -1; |
510 | PL_tmps_ix = -1; |
403 | PL_tmps_max = 96; |
511 | PL_tmps_max = 64; |
404 | |
512 | |
405 | New(54,PL_markstack,16,I32); |
513 | New(54,PL_markstack,16,I32); |
406 | PL_markstack_ptr = PL_markstack; |
514 | PL_markstack_ptr = PL_markstack; |
407 | PL_markstack_max = PL_markstack + 16; |
515 | PL_markstack_max = PL_markstack + 16; |
408 | |
516 | |
… | |
… | |
412 | |
520 | |
413 | New(54,PL_scopestack,16,I32); |
521 | New(54,PL_scopestack,16,I32); |
414 | PL_scopestack_ix = 0; |
522 | PL_scopestack_ix = 0; |
415 | PL_scopestack_max = 16; |
523 | PL_scopestack_max = 16; |
416 | |
524 | |
417 | New(54,PL_savestack,96,ANY); |
525 | New(54,PL_savestack,64,ANY); |
418 | PL_savestack_ix = 0; |
526 | PL_savestack_ix = 0; |
419 | PL_savestack_max = 96; |
527 | PL_savestack_max = 64; |
420 | |
528 | |
421 | #if !PERL_VERSION_ATLEAST (5,9,0) |
529 | #if !PERL_VERSION_ATLEAST (5,9,0) |
422 | New(54,PL_retstack,8,OP*); |
530 | New(54,PL_retstack,4,OP*); |
423 | PL_retstack_ix = 0; |
531 | PL_retstack_ix = 0; |
424 | PL_retstack_max = 8; |
532 | PL_retstack_max = 4; |
425 | #endif |
533 | #endif |
426 | } |
534 | } |
|
|
535 | #endif |
427 | |
536 | |
428 | /* |
537 | /* |
429 | * destroy the stacks, the callchain etc... |
538 | * destroy the stacks, the callchain etc... |
430 | */ |
539 | */ |
431 | static void |
540 | static void |
432 | coro_destroy_stacks () |
541 | coro_destroy_stacks (pTHX) |
433 | { |
542 | { |
434 | if (!IN_DESTRUCT) |
|
|
435 | { |
|
|
436 | /* is this ugly, I ask? */ |
|
|
437 | LEAVE_SCOPE (0); |
|
|
438 | |
|
|
439 | /* sure it is, but more important: is it correct?? :/ */ |
|
|
440 | FREETMPS; |
|
|
441 | |
|
|
442 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
443 | } |
|
|
444 | |
|
|
445 | while (PL_curstackinfo->si_next) |
543 | while (PL_curstackinfo->si_next) |
446 | PL_curstackinfo = PL_curstackinfo->si_next; |
544 | PL_curstackinfo = PL_curstackinfo->si_next; |
447 | |
545 | |
448 | while (PL_curstackinfo) |
546 | while (PL_curstackinfo) |
449 | { |
547 | { |
450 | PERL_SI *p = PL_curstackinfo->si_prev; |
548 | PERL_SI *p = PL_curstackinfo->si_prev; |
451 | |
549 | |
452 | { /*D*//*remove*/ |
|
|
453 | dSP; |
|
|
454 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
455 | PUTBACK; /* possibly superfluous */ |
|
|
456 | } |
|
|
457 | |
|
|
458 | if (!IN_DESTRUCT) |
550 | if (!IN_DESTRUCT) |
459 | { |
|
|
460 | dounwind (-1);/*D*//*remove*/ |
|
|
461 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
551 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
462 | } |
|
|
463 | |
552 | |
464 | Safefree (PL_curstackinfo->si_cxstack); |
553 | Safefree (PL_curstackinfo->si_cxstack); |
465 | Safefree (PL_curstackinfo); |
554 | Safefree (PL_curstackinfo); |
466 | PL_curstackinfo = p; |
555 | PL_curstackinfo = p; |
467 | } |
556 | } |
… | |
… | |
473 | #if !PERL_VERSION_ATLEAST (5,9,0) |
562 | #if !PERL_VERSION_ATLEAST (5,9,0) |
474 | Safefree (PL_retstack); |
563 | Safefree (PL_retstack); |
475 | #endif |
564 | #endif |
476 | } |
565 | } |
477 | |
566 | |
478 | static void |
567 | static size_t |
479 | setup_coro (struct coro *coro) |
568 | coro_rss (pTHX_ struct coro *coro) |
|
|
569 | { |
|
|
570 | size_t rss = sizeof (*coro); |
|
|
571 | |
|
|
572 | if (coro->mainstack) |
|
|
573 | { |
|
|
574 | if (coro->flags & CF_RUNNING) |
|
|
575 | { |
|
|
576 | #define VAR(name,type)coro->name = PL_ ## name; |
|
|
577 | # include "state.h" |
|
|
578 | #undef VAR |
|
|
579 | } |
|
|
580 | |
|
|
581 | rss += sizeof (coro->curstackinfo); |
|
|
582 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
583 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
584 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
|
|
585 | rss += coro->tmps_max * sizeof (SV *); |
|
|
586 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
587 | rss += coro->scopestack_max * sizeof (I32); |
|
|
588 | rss += coro->savestack_max * sizeof (ANY); |
|
|
589 | |
|
|
590 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
591 | rss += coro->retstack_max * sizeof (OP *); |
|
|
592 | #endif |
|
|
593 | } |
|
|
594 | |
|
|
595 | return rss; |
|
|
596 | } |
|
|
597 | |
|
|
598 | /** coroutine stack handling ************************************************/ |
|
|
599 | |
|
|
600 | static void |
|
|
601 | coro_setup (pTHX_ struct coro *coro) |
480 | { |
602 | { |
481 | /* |
603 | /* |
482 | * emulate part of the perl startup here. |
604 | * emulate part of the perl startup here. |
483 | */ |
605 | */ |
484 | |
|
|
485 | coro_init_stacks (); |
606 | coro_init_stacks (aTHX); |
486 | |
607 | |
|
|
608 | PL_runops = RUNOPS_DEFAULT; |
|
|
609 | PL_curcop = &PL_compiling; |
|
|
610 | PL_in_eval = EVAL_NULL; |
487 | PL_curcop = 0; |
611 | PL_comppad = 0; |
488 | PL_in_eval = 0; |
|
|
489 | PL_curpm = 0; |
612 | PL_curpm = 0; |
|
|
613 | PL_curpad = 0; |
|
|
614 | PL_localizing = 0; |
|
|
615 | PL_dirty = 0; |
|
|
616 | PL_restartop = 0; |
|
|
617 | |
|
|
618 | GvSV (PL_defgv) = newSV (0); |
|
|
619 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
620 | GvSV (PL_errgv) = newSV (0); |
|
|
621 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
622 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
623 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
490 | |
624 | |
491 | { |
625 | { |
492 | dSP; |
626 | dSP; |
493 | LOGOP myop; |
627 | LOGOP myop; |
494 | |
628 | |
495 | /* I have no idea why this is needed, but it is */ |
|
|
496 | PUSHMARK (SP); |
|
|
497 | |
|
|
498 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
499 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
500 | |
|
|
501 | Zero (&myop, 1, LOGOP); |
629 | Zero (&myop, 1, LOGOP); |
502 | myop.op_next = Nullop; |
630 | myop.op_next = Nullop; |
503 | myop.op_flags = OPf_WANT_VOID; |
631 | myop.op_flags = OPf_WANT_VOID; |
504 | |
632 | |
|
|
633 | PUSHMARK (SP); |
|
|
634 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
|
|
635 | PUTBACK; |
505 | PL_op = (OP *)&myop; |
636 | PL_op = (OP *)&myop; |
506 | |
|
|
507 | PUSHMARK (SP); |
|
|
508 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
|
|
509 | PUTBACK; |
|
|
510 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
637 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
511 | SPAGAIN; |
638 | SPAGAIN; |
512 | |
|
|
513 | ENTER; /* necessary e.g. for dounwind */ |
|
|
514 | } |
639 | } |
515 | } |
|
|
516 | |
640 | |
|
|
641 | ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */ |
|
|
642 | } |
|
|
643 | |
517 | static void |
644 | static void |
|
|
645 | coro_destroy (pTHX_ struct coro *coro) |
|
|
646 | { |
|
|
647 | if (!IN_DESTRUCT) |
|
|
648 | { |
|
|
649 | /* restore all saved variables and stuff */ |
|
|
650 | LEAVE_SCOPE (0); |
|
|
651 | assert (PL_tmps_floor == -1); |
|
|
652 | |
|
|
653 | /* free all temporaries */ |
|
|
654 | FREETMPS; |
|
|
655 | assert (PL_tmps_ix == -1); |
|
|
656 | |
|
|
657 | /* unwind all extra stacks */ |
|
|
658 | POPSTACK_TO (PL_mainstack); |
|
|
659 | |
|
|
660 | /* unwind main stack */ |
|
|
661 | dounwind (-1); |
|
|
662 | } |
|
|
663 | |
|
|
664 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
665 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
666 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
667 | SvREFCNT_dec (PL_defoutgv); |
|
|
668 | SvREFCNT_dec (PL_rs); |
|
|
669 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
670 | |
|
|
671 | SvREFCNT_dec (coro->saved_deffh); |
|
|
672 | SvREFCNT_dec (coro->throw); |
|
|
673 | |
|
|
674 | coro_destroy_stacks (aTHX); |
|
|
675 | } |
|
|
676 | |
|
|
677 | static void |
518 | free_coro_mortal () |
678 | free_coro_mortal (pTHX) |
519 | { |
679 | { |
520 | if (coro_mortal) |
680 | if (expect_true (coro_mortal)) |
521 | { |
681 | { |
522 | SvREFCNT_dec (coro_mortal); |
682 | SvREFCNT_dec (coro_mortal); |
523 | coro_mortal = 0; |
683 | coro_mortal = 0; |
524 | } |
684 | } |
525 | } |
685 | } |
526 | |
686 | |
|
|
687 | static int |
|
|
688 | runops_trace (pTHX) |
|
|
689 | { |
|
|
690 | COP *oldcop = 0; |
|
|
691 | int oldcxix = -2; |
|
|
692 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
693 | coro_cctx *cctx = coro->cctx; |
|
|
694 | |
|
|
695 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
696 | { |
|
|
697 | PERL_ASYNC_CHECK (); |
|
|
698 | |
|
|
699 | if (cctx->flags & CC_TRACE_ALL) |
|
|
700 | { |
|
|
701 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
702 | { |
|
|
703 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
704 | SV **bot, **top; |
|
|
705 | AV *av = newAV (); /* return values */ |
|
|
706 | SV **cb; |
|
|
707 | dSP; |
|
|
708 | |
|
|
709 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
710 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
711 | if (isGV (gv)) |
|
|
712 | gv_efullname3 (fullname, gv, 0); |
|
|
713 | |
|
|
714 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
715 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
716 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
717 | : bot; |
|
|
718 | |
|
|
719 | av_extend (av, top - bot); |
|
|
720 | while (bot < top) |
|
|
721 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
722 | |
|
|
723 | PL_runops = RUNOPS_DEFAULT; |
|
|
724 | ENTER; |
|
|
725 | SAVETMPS; |
|
|
726 | EXTEND (SP, 3); |
|
|
727 | PUSHMARK (SP); |
|
|
728 | PUSHs (&PL_sv_no); |
|
|
729 | PUSHs (fullname); |
|
|
730 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
731 | PUTBACK; |
|
|
732 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
733 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
734 | SPAGAIN; |
|
|
735 | FREETMPS; |
|
|
736 | LEAVE; |
|
|
737 | PL_runops = runops_trace; |
|
|
738 | } |
|
|
739 | |
|
|
740 | if (oldcop != PL_curcop) |
|
|
741 | { |
|
|
742 | oldcop = PL_curcop; |
|
|
743 | |
|
|
744 | if (PL_curcop != &PL_compiling) |
|
|
745 | { |
|
|
746 | SV **cb; |
|
|
747 | |
|
|
748 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
749 | { |
|
|
750 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
751 | |
|
|
752 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
753 | { |
|
|
754 | runops_proc_t old_runops = PL_runops; |
|
|
755 | dSP; |
|
|
756 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
757 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
758 | |
|
|
759 | if (isGV (gv)) |
|
|
760 | gv_efullname3 (fullname, gv, 0); |
|
|
761 | |
|
|
762 | PL_runops = RUNOPS_DEFAULT; |
|
|
763 | ENTER; |
|
|
764 | SAVETMPS; |
|
|
765 | EXTEND (SP, 3); |
|
|
766 | PUSHMARK (SP); |
|
|
767 | PUSHs (&PL_sv_yes); |
|
|
768 | PUSHs (fullname); |
|
|
769 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
770 | PUTBACK; |
|
|
771 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
772 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
773 | SPAGAIN; |
|
|
774 | FREETMPS; |
|
|
775 | LEAVE; |
|
|
776 | PL_runops = runops_trace; |
|
|
777 | } |
|
|
778 | |
|
|
779 | oldcxix = cxstack_ix; |
|
|
780 | } |
|
|
781 | |
|
|
782 | if (cctx->flags & CC_TRACE_LINE) |
|
|
783 | { |
|
|
784 | dSP; |
|
|
785 | |
|
|
786 | PL_runops = RUNOPS_DEFAULT; |
|
|
787 | ENTER; |
|
|
788 | SAVETMPS; |
|
|
789 | EXTEND (SP, 3); |
|
|
790 | PL_runops = RUNOPS_DEFAULT; |
|
|
791 | PUSHMARK (SP); |
|
|
792 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
793 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
794 | PUTBACK; |
|
|
795 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
796 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
797 | SPAGAIN; |
|
|
798 | FREETMPS; |
|
|
799 | LEAVE; |
|
|
800 | PL_runops = runops_trace; |
|
|
801 | } |
|
|
802 | } |
|
|
803 | } |
|
|
804 | } |
|
|
805 | } |
|
|
806 | |
|
|
807 | TAINT_NOT; |
|
|
808 | return 0; |
|
|
809 | } |
|
|
810 | |
|
|
811 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
812 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
813 | /* during execution of a perl program */ |
527 | static void NOINLINE |
814 | static void NOINLINE |
528 | prepare_cctx (coro_cctx *cctx) |
815 | prepare_cctx (pTHX_ coro_cctx *cctx) |
529 | { |
816 | { |
530 | dSP; |
817 | dSP; |
531 | LOGOP myop; |
818 | LOGOP myop; |
532 | |
819 | |
|
|
820 | PL_top_env = &PL_start_env; |
|
|
821 | |
|
|
822 | if (cctx->flags & CC_TRACE) |
|
|
823 | PL_runops = runops_trace; |
|
|
824 | |
533 | Zero (&myop, 1, LOGOP); |
825 | Zero (&myop, 1, LOGOP); |
534 | myop.op_next = PL_op; |
826 | myop.op_next = PL_op; |
535 | myop.op_flags = OPf_WANT_VOID; |
827 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
536 | |
|
|
537 | sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx)); |
|
|
538 | |
828 | |
539 | PUSHMARK (SP); |
829 | PUSHMARK (SP); |
|
|
830 | EXTEND (SP, 2); |
|
|
831 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
540 | XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
832 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
541 | PUTBACK; |
833 | PUTBACK; |
|
|
834 | PL_op = (OP *)&myop; |
542 | PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX); |
835 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
543 | SPAGAIN; |
836 | SPAGAIN; |
544 | } |
837 | } |
545 | |
838 | |
|
|
839 | /* |
|
|
840 | * this is a _very_ stripped down perl interpreter ;) |
|
|
841 | */ |
546 | static void |
842 | static void |
547 | coro_run (void *arg) |
843 | coro_run (void *arg) |
548 | { |
844 | { |
|
|
845 | dTHX; |
|
|
846 | |
549 | /* coro_run is the alternative epilogue of transfer() */ |
847 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
550 | UNLOCK; |
848 | UNLOCK; |
551 | |
849 | |
|
|
850 | /* we now skip the entersub that lead to transfer() */ |
|
|
851 | PL_op = PL_op->op_next; |
|
|
852 | |
|
|
853 | /* inject a fake subroutine call to cctx_init */ |
|
|
854 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
|
|
855 | |
|
|
856 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
857 | PL_restartop = PL_op; |
|
|
858 | perl_run (PL_curinterp); |
|
|
859 | |
552 | /* |
860 | /* |
553 | * this is a _very_ stripped down perl interpreter ;) |
861 | * If perl-run returns we assume exit() was being called or the coro |
|
|
862 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
863 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
864 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
865 | * coroutine as Coro has no such concept |
554 | */ |
866 | */ |
555 | PL_top_env = &PL_start_env; |
867 | PL_top_env = main_top_env; |
556 | |
868 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
557 | /* inject call to cctx_init */ |
|
|
558 | prepare_cctx ((coro_cctx *)arg); |
|
|
559 | |
|
|
560 | /* somebody will hit me for both perl_run and PL_restartop */ |
|
|
561 | perl_run (PL_curinterp); |
|
|
562 | |
|
|
563 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
|
|
564 | abort (); |
|
|
565 | } |
869 | } |
566 | |
870 | |
567 | static coro_cctx * |
871 | static coro_cctx * |
568 | cctx_new () |
872 | cctx_new () |
569 | { |
873 | { |
570 | coro_cctx *cctx; |
874 | coro_cctx *cctx; |
|
|
875 | void *stack_start; |
|
|
876 | size_t stack_size; |
571 | |
877 | |
572 | ++cctx_count; |
878 | ++cctx_count; |
573 | |
879 | |
574 | New (0, cctx, 1, coro_cctx); |
880 | Newz (0, cctx, 1, coro_cctx); |
575 | |
881 | |
576 | #if HAVE_MMAP |
882 | #if HAVE_MMAP |
577 | |
883 | |
578 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
884 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
579 | /* mmap suppsedly does allocate-on-write for us */ |
885 | /* mmap supposedly does allocate-on-write for us */ |
580 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
886 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
581 | |
887 | |
582 | if (cctx->sptr == (void *)-1) |
888 | if (cctx->sptr != (void *)-1) |
583 | { |
|
|
584 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
585 | _exit (EXIT_FAILURE); |
|
|
586 | } |
889 | { |
587 | |
|
|
588 | # if STACKGUARD |
890 | # if CORO_STACKGUARD |
589 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
891 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
590 | # endif |
892 | # endif |
|
|
893 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
894 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
895 | cctx->flags |= CC_MAPPED; |
|
|
896 | } |
|
|
897 | else |
|
|
898 | #endif |
|
|
899 | { |
|
|
900 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
901 | New (0, cctx->sptr, coro_stacksize, long); |
591 | |
902 | |
592 | #else |
|
|
593 | |
|
|
594 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
595 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
596 | |
|
|
597 | if (!cctx->sptr) |
903 | if (!cctx->sptr) |
598 | { |
904 | { |
599 | perror ("FATAL: unable to malloc stack for coroutine"); |
905 | perror ("FATAL: unable to allocate stack for coroutine"); |
600 | _exit (EXIT_FAILURE); |
906 | _exit (EXIT_FAILURE); |
601 | } |
907 | } |
602 | |
908 | |
603 | #endif |
909 | stack_start = cctx->sptr; |
|
|
910 | stack_size = cctx->ssize; |
|
|
911 | } |
604 | |
912 | |
605 | #if USE_VALGRIND |
913 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
606 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
|
|
607 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
608 | cctx->ssize + (char *)cctx->sptr |
|
|
609 | ); |
|
|
610 | #endif |
|
|
611 | |
|
|
612 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
914 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
613 | |
915 | |
614 | return cctx; |
916 | return cctx; |
615 | } |
917 | } |
616 | |
918 | |
617 | static void |
919 | static void |
618 | cctx_free (coro_cctx *cctx) |
920 | cctx_destroy (coro_cctx *cctx) |
619 | { |
921 | { |
620 | if (!cctx) |
922 | if (!cctx) |
621 | return; |
923 | return; |
622 | |
924 | |
623 | --cctx_count; |
925 | --cctx_count; |
624 | |
926 | |
625 | #if USE_VALGRIND |
927 | #if CORO_USE_VALGRIND |
626 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
928 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
627 | #endif |
929 | #endif |
628 | |
930 | |
629 | #if HAVE_MMAP |
931 | #if HAVE_MMAP |
|
|
932 | if (cctx->flags & CC_MAPPED) |
630 | munmap (cctx->sptr, cctx->ssize); |
933 | munmap (cctx->sptr, cctx->ssize); |
631 | #else |
934 | else |
|
|
935 | #endif |
632 | Safefree (cctx->sptr); |
936 | Safefree (cctx->sptr); |
633 | #endif |
|
|
634 | |
937 | |
635 | Safefree (cctx); |
938 | Safefree (cctx); |
636 | } |
939 | } |
637 | |
940 | |
|
|
941 | /* wether this cctx should be destructed */ |
|
|
942 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
|
|
943 | |
638 | static coro_cctx * |
944 | static coro_cctx * |
639 | cctx_get () |
945 | cctx_get (pTHX) |
640 | { |
946 | { |
641 | coro_cctx *cctx; |
947 | while (expect_true (cctx_first)) |
642 | |
|
|
643 | if (cctx_first) |
|
|
644 | { |
948 | { |
|
|
949 | coro_cctx *cctx = cctx_first; |
|
|
950 | cctx_first = cctx->next; |
645 | --cctx_idle; |
951 | --cctx_idle; |
646 | cctx = cctx_first; |
952 | |
647 | cctx_first = cctx->next; |
953 | if (expect_true (!CCTX_EXPIRED (cctx))) |
648 | } |
954 | return cctx; |
649 | else |
955 | |
650 | { |
956 | cctx_destroy (cctx); |
651 | cctx = cctx_new (); |
|
|
652 | PL_op = PL_op->op_next; |
|
|
653 | } |
957 | } |
654 | |
958 | |
655 | return cctx; |
959 | return cctx_new (); |
656 | } |
960 | } |
657 | |
961 | |
658 | static void |
962 | static void |
659 | cctx_put (coro_cctx *cctx) |
963 | cctx_put (coro_cctx *cctx) |
660 | { |
964 | { |
|
|
965 | /* free another cctx if overlimit */ |
|
|
966 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
|
|
967 | { |
|
|
968 | coro_cctx *first = cctx_first; |
|
|
969 | cctx_first = first->next; |
|
|
970 | --cctx_idle; |
|
|
971 | |
|
|
972 | cctx_destroy (first); |
|
|
973 | } |
|
|
974 | |
661 | ++cctx_idle; |
975 | ++cctx_idle; |
662 | cctx->next = cctx_first; |
976 | cctx->next = cctx_first; |
663 | cctx_first = cctx; |
977 | cctx_first = cctx; |
664 | } |
978 | } |
665 | |
979 | |
666 | /* never call directly, always through the coro_state_transfer global variable */ |
980 | /** coroutine switching *****************************************************/ |
|
|
981 | |
|
|
982 | static void |
|
|
983 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
984 | { |
|
|
985 | if (expect_true (prev != next)) |
|
|
986 | { |
|
|
987 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
988 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
989 | |
|
|
990 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
991 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
992 | |
|
|
993 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
994 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
995 | |
|
|
996 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
997 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
|
|
998 | } |
|
|
999 | } |
|
|
1000 | |
|
|
1001 | /* always use the TRANSFER macro */ |
667 | static void NOINLINE |
1002 | static void NOINLINE |
668 | transfer (struct coro *prev, struct coro *next, int flags) |
1003 | transfer (pTHX_ struct coro *prev, struct coro *next) |
669 | { |
1004 | { |
670 | dSTACKLEVEL; |
1005 | dSTACKLEVEL; |
671 | |
1006 | |
672 | /* sometimes transfer is only called to set idle_sp */ |
1007 | /* sometimes transfer is only called to set idle_sp */ |
673 | if (flags == TRANSFER_SET_STACKLEVEL) |
1008 | if (expect_false (!next)) |
|
|
1009 | { |
674 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1010 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
|
|
1011 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
|
|
1012 | } |
675 | else if (prev != next) |
1013 | else if (expect_true (prev != next)) |
676 | { |
1014 | { |
677 | coro_cctx *prev__cctx; |
1015 | coro_cctx *prev__cctx; |
678 | |
1016 | |
679 | if (!prev->cctx) |
1017 | if (expect_false (prev->flags & CF_NEW)) |
680 | { |
1018 | { |
681 | /* create a new empty context */ |
1019 | /* create a new empty context */ |
682 | Newz (0, prev->cctx, 1, coro_cctx); |
1020 | Newz (0, prev->cctx, 1, coro_cctx); |
683 | prev->cctx->inuse = 1; |
1021 | prev->flags &= ~CF_NEW; |
684 | prev->flags |= CF_RUNNING; |
1022 | prev->flags |= CF_RUNNING; |
685 | } |
1023 | } |
686 | |
|
|
687 | if (!prev->flags & CF_RUNNING) |
|
|
688 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
689 | |
|
|
690 | if (next->flags & CF_RUNNING) |
|
|
691 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
692 | |
1024 | |
693 | prev->flags &= ~CF_RUNNING; |
1025 | prev->flags &= ~CF_RUNNING; |
694 | next->flags |= CF_RUNNING; |
1026 | next->flags |= CF_RUNNING; |
695 | |
1027 | |
696 | LOCK; |
1028 | LOCK; |
697 | |
1029 | |
698 | if (next->mainstack) |
1030 | if (expect_false (next->flags & CF_NEW)) |
699 | { |
1031 | { |
700 | /* coroutine already started */ |
1032 | /* need to start coroutine */ |
701 | SAVE (prev, flags); |
1033 | next->flags &= ~CF_NEW; |
702 | LOAD (next); |
1034 | /* first get rid of the old state */ |
|
|
1035 | save_perl (aTHX_ prev); |
|
|
1036 | /* setup coroutine call */ |
|
|
1037 | coro_setup (aTHX_ next); |
703 | } |
1038 | } |
704 | else |
1039 | else |
705 | { |
1040 | { |
706 | /* need to start coroutine */ |
1041 | /* coroutine already started */ |
707 | /* first get rid of the old state */ |
1042 | save_perl (aTHX_ prev); |
708 | SAVE (prev, -1); |
1043 | load_perl (aTHX_ next); |
709 | /* setup coroutine call */ |
|
|
710 | setup_coro (next); |
|
|
711 | /* need a new stack */ |
|
|
712 | assert (!next->stack); |
|
|
713 | } |
1044 | } |
714 | |
1045 | |
715 | prev__cctx = prev->cctx; |
1046 | prev__cctx = prev->cctx; |
716 | |
1047 | |
717 | /* possibly "free" the cctx */ |
1048 | /* possibly "free" the cctx */ |
718 | if (prev__cctx->idle_sp == STACKLEVEL) |
1049 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
719 | { |
1050 | { |
720 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1051 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
721 | assert (PL_top_env == prev__cctx->top_env); |
1052 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
1053 | |
|
|
1054 | prev->cctx = 0; |
|
|
1055 | |
|
|
1056 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1057 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1058 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1059 | next->cctx = cctx_get (aTHX); |
722 | |
1060 | |
723 | cctx_put (prev__cctx); |
1061 | cctx_put (prev__cctx); |
724 | prev->cctx = 0; |
|
|
725 | } |
1062 | } |
726 | |
1063 | |
|
|
1064 | ++next->usecount; |
|
|
1065 | |
727 | if (!next->cctx) |
1066 | if (expect_true (!next->cctx)) |
728 | next->cctx = cctx_get (); |
1067 | next->cctx = cctx_get (aTHX); |
729 | |
1068 | |
730 | if (prev__cctx != next->cctx) |
1069 | if (expect_false (prev__cctx != next->cctx)) |
731 | { |
1070 | { |
732 | assert ( prev__cctx->inuse); |
|
|
733 | assert (!next->cctx->inuse); |
|
|
734 | |
|
|
735 | prev__cctx->inuse = 0; |
|
|
736 | next->cctx->inuse = 1; |
|
|
737 | |
|
|
738 | prev__cctx->top_env = PL_top_env; |
1071 | prev__cctx->top_env = PL_top_env; |
739 | PL_top_env = next->cctx->top_env; |
1072 | PL_top_env = next->cctx->top_env; |
740 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1073 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
741 | } |
1074 | } |
742 | |
1075 | |
743 | free_coro_mortal (); |
1076 | free_coro_mortal (aTHX); |
744 | |
|
|
745 | UNLOCK; |
1077 | UNLOCK; |
|
|
1078 | |
|
|
1079 | if (expect_false (prev->throw || next->throw)) |
|
|
1080 | { |
|
|
1081 | struct coro *coro = SvSTATE (coro_current); |
|
|
1082 | |
|
|
1083 | if (coro->throw) |
|
|
1084 | { |
|
|
1085 | SV *exception = coro->throw; |
|
|
1086 | coro->throw = 0; |
|
|
1087 | sv_setsv (ERRSV, exception); |
|
|
1088 | croak (0); |
|
|
1089 | } |
|
|
1090 | } |
746 | } |
1091 | } |
747 | } |
1092 | } |
748 | |
1093 | |
749 | struct transfer_args |
1094 | struct transfer_args |
750 | { |
1095 | { |
751 | struct coro *prev, *next; |
1096 | struct coro *prev, *next; |
752 | int flags; |
|
|
753 | }; |
1097 | }; |
754 | |
1098 | |
755 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags) |
1099 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
|
|
1100 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
756 | |
1101 | |
|
|
1102 | /** high level stuff ********************************************************/ |
|
|
1103 | |
757 | static void |
1104 | static int |
758 | coro_state_destroy (struct coro *coro) |
1105 | coro_state_destroy (pTHX_ struct coro *coro) |
759 | { |
1106 | { |
760 | if (coro->refcnt--) |
1107 | if (coro->flags & CF_DESTROYED) |
761 | return; |
1108 | return 0; |
762 | |
1109 | |
|
|
1110 | coro->flags |= CF_DESTROYED; |
|
|
1111 | |
763 | if (coro->flags & CF_RUNNING) |
1112 | if (coro->flags & CF_READY) |
764 | croak ("FATAL: tried to destroy currently running coroutine"); |
1113 | { |
|
|
1114 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1115 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1116 | LOCK; |
|
|
1117 | --coro_nready; |
|
|
1118 | UNLOCK; |
|
|
1119 | } |
|
|
1120 | else |
|
|
1121 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
765 | |
1122 | |
766 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1123 | if (coro->mainstack && coro->mainstack != main_mainstack) |
767 | { |
1124 | { |
768 | struct coro temp; |
1125 | struct coro temp; |
769 | |
1126 | |
770 | SAVE ((&temp), TRANSFER_SAVE_ALL); |
1127 | if (coro->flags & CF_RUNNING) |
771 | LOAD (coro); |
1128 | croak ("FATAL: tried to destroy currently running coroutine"); |
772 | |
1129 | |
773 | coro_destroy_stacks (); |
1130 | save_perl (aTHX_ &temp); |
|
|
1131 | load_perl (aTHX_ coro); |
774 | |
1132 | |
|
|
1133 | coro_destroy (aTHX_ coro); |
|
|
1134 | |
775 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1135 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
776 | |
1136 | |
777 | coro->mainstack = 0; |
1137 | coro->mainstack = 0; |
778 | } |
1138 | } |
779 | |
1139 | |
780 | cctx_free (coro->cctx); |
1140 | cctx_destroy (coro->cctx); |
781 | SvREFCNT_dec (coro->args); |
1141 | SvREFCNT_dec (coro->args); |
782 | Safefree (coro); |
1142 | |
|
|
1143 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1144 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1145 | if (coro == coro_first) coro_first = coro->next; |
|
|
1146 | |
|
|
1147 | return 1; |
783 | } |
1148 | } |
784 | |
1149 | |
785 | static int |
1150 | static int |
786 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
1151 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
787 | { |
1152 | { |
788 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1153 | struct coro *coro = (struct coro *)mg->mg_ptr; |
789 | mg->mg_ptr = 0; |
1154 | mg->mg_ptr = 0; |
790 | |
1155 | |
|
|
1156 | coro->hv = 0; |
|
|
1157 | |
|
|
1158 | if (--coro->refcnt < 0) |
|
|
1159 | { |
791 | coro_state_destroy (coro); |
1160 | coro_state_destroy (aTHX_ coro); |
|
|
1161 | Safefree (coro); |
|
|
1162 | } |
792 | |
1163 | |
793 | return 0; |
1164 | return 0; |
794 | } |
1165 | } |
795 | |
1166 | |
796 | static int |
1167 | static int |
… | |
… | |
803 | return 0; |
1174 | return 0; |
804 | } |
1175 | } |
805 | |
1176 | |
806 | static MGVTBL coro_state_vtbl = { |
1177 | static MGVTBL coro_state_vtbl = { |
807 | 0, 0, 0, 0, |
1178 | 0, 0, 0, 0, |
808 | coro_state_clear, |
1179 | coro_state_free, |
809 | 0, |
1180 | 0, |
810 | #ifdef MGf_DUP |
1181 | #ifdef MGf_DUP |
811 | coro_state_dup, |
1182 | coro_state_dup, |
812 | #else |
1183 | #else |
813 | # define MGf_DUP 0 |
1184 | # define MGf_DUP 0 |
814 | #endif |
1185 | #endif |
815 | }; |
1186 | }; |
816 | |
1187 | |
817 | static struct coro * |
|
|
818 | SvSTATE (SV *coro) |
|
|
819 | { |
|
|
820 | HV *stash; |
|
|
821 | MAGIC *mg; |
|
|
822 | |
|
|
823 | if (SvROK (coro)) |
|
|
824 | coro = SvRV (coro); |
|
|
825 | |
|
|
826 | stash = SvSTASH (coro); |
|
|
827 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
828 | { |
|
|
829 | /* very slow, but rare, check */ |
|
|
830 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
831 | croak ("Coro::State object required"); |
|
|
832 | } |
|
|
833 | |
|
|
834 | mg = SvMAGIC (coro); |
|
|
835 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
836 | return (struct coro *)mg->mg_ptr; |
|
|
837 | } |
|
|
838 | |
|
|
839 | static void |
1188 | static void |
840 | prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags) |
1189 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
841 | { |
1190 | { |
842 | ta->prev = SvSTATE (prev); |
1191 | ta->prev = SvSTATE (prev_sv); |
843 | ta->next = SvSTATE (next); |
1192 | ta->next = SvSTATE (next_sv); |
844 | ta->flags = flags; |
1193 | TRANSFER_CHECK (*ta); |
845 | } |
1194 | } |
846 | |
1195 | |
847 | static void |
1196 | static void |
848 | api_transfer (SV *prev, SV *next, int flags) |
1197 | api_transfer (SV *prev_sv, SV *next_sv) |
849 | { |
1198 | { |
850 | dTHX; |
1199 | dTHX; |
851 | struct transfer_args ta; |
1200 | struct transfer_args ta; |
852 | |
1201 | |
853 | prepare_transfer (&ta, prev, next, flags); |
1202 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
854 | TRANSFER (ta); |
1203 | TRANSFER (ta); |
855 | } |
1204 | } |
856 | |
1205 | |
857 | /** Coro ********************************************************************/ |
1206 | /** Coro ********************************************************************/ |
858 | |
1207 | |
859 | #define PRIO_MAX 3 |
|
|
860 | #define PRIO_HIGH 1 |
|
|
861 | #define PRIO_NORMAL 0 |
|
|
862 | #define PRIO_LOW -1 |
|
|
863 | #define PRIO_IDLE -3 |
|
|
864 | #define PRIO_MIN -4 |
|
|
865 | |
|
|
866 | /* for Coro.pm */ |
|
|
867 | static GV *coro_current, *coro_idle; |
|
|
868 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
869 | static int coro_nready; |
|
|
870 | |
|
|
871 | static void |
1208 | static void |
872 | coro_enq (SV *coro_sv) |
1209 | coro_enq (pTHX_ SV *coro_sv) |
873 | { |
1210 | { |
874 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1211 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
875 | coro_nready++; |
|
|
876 | } |
1212 | } |
877 | |
1213 | |
878 | static SV * |
1214 | static SV * |
879 | coro_deq (int min_prio) |
1215 | coro_deq (pTHX_ int min_prio) |
880 | { |
1216 | { |
881 | int prio = PRIO_MAX - PRIO_MIN; |
1217 | int prio = PRIO_MAX - PRIO_MIN; |
882 | |
1218 | |
883 | min_prio -= PRIO_MIN; |
1219 | min_prio -= PRIO_MIN; |
884 | if (min_prio < 0) |
1220 | if (min_prio < 0) |
885 | min_prio = 0; |
1221 | min_prio = 0; |
886 | |
1222 | |
887 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1223 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
888 | if (AvFILLp (coro_ready [prio]) >= 0) |
1224 | if (AvFILLp (coro_ready [prio]) >= 0) |
889 | { |
|
|
890 | coro_nready--; |
|
|
891 | return av_shift (coro_ready [prio]); |
1225 | return av_shift (coro_ready [prio]); |
892 | } |
|
|
893 | |
1226 | |
894 | return 0; |
1227 | return 0; |
895 | } |
1228 | } |
896 | |
1229 | |
897 | static int |
1230 | static int |
898 | api_ready (SV *coro_sv) |
1231 | api_ready (SV *coro_sv) |
899 | { |
1232 | { |
|
|
1233 | dTHX; |
900 | struct coro *coro; |
1234 | struct coro *coro; |
901 | |
1235 | |
902 | if (SvROK (coro_sv)) |
1236 | if (SvROK (coro_sv)) |
903 | coro_sv = SvRV (coro_sv); |
1237 | coro_sv = SvRV (coro_sv); |
904 | |
1238 | |
905 | coro = SvSTATE (coro_sv); |
1239 | coro = SvSTATE (coro_sv); |
906 | |
1240 | |
907 | if (coro->flags & CF_READY) |
1241 | if (coro->flags & CF_READY) |
908 | return 0; |
1242 | return 0; |
909 | |
1243 | |
910 | if (coro->flags & CF_RUNNING) |
|
|
911 | croak ("Coro::ready called on currently running coroutine"); |
|
|
912 | |
|
|
913 | coro->flags |= CF_READY; |
1244 | coro->flags |= CF_READY; |
914 | |
1245 | |
915 | LOCK; |
1246 | LOCK; |
916 | coro_enq (SvREFCNT_inc (coro_sv)); |
1247 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1248 | ++coro_nready; |
917 | UNLOCK; |
1249 | UNLOCK; |
918 | |
1250 | |
919 | return 1; |
1251 | return 1; |
920 | } |
1252 | } |
921 | |
1253 | |
922 | static int |
1254 | static int |
923 | api_is_ready (SV *coro_sv) |
1255 | api_is_ready (SV *coro_sv) |
924 | { |
1256 | { |
|
|
1257 | dTHX; |
925 | return !!SvSTATE (coro_sv)->flags & CF_READY; |
1258 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
926 | } |
1259 | } |
927 | |
1260 | |
928 | static void |
1261 | static void |
929 | prepare_schedule (struct transfer_args *ta) |
1262 | prepare_schedule (pTHX_ struct transfer_args *ta) |
930 | { |
1263 | { |
931 | SV *current, *prev, *next; |
1264 | SV *prev_sv, *next_sv; |
932 | |
|
|
933 | current = GvSV (coro_current); |
|
|
934 | |
1265 | |
935 | for (;;) |
1266 | for (;;) |
936 | { |
1267 | { |
937 | LOCK; |
1268 | LOCK; |
938 | next = coro_deq (PRIO_MIN); |
1269 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1270 | |
|
|
1271 | /* nothing to schedule: call the idle handler */ |
|
|
1272 | if (expect_false (!next_sv)) |
|
|
1273 | { |
|
|
1274 | dSP; |
|
|
1275 | UNLOCK; |
|
|
1276 | |
|
|
1277 | ENTER; |
|
|
1278 | SAVETMPS; |
|
|
1279 | |
|
|
1280 | PUSHMARK (SP); |
|
|
1281 | PUTBACK; |
|
|
1282 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1283 | |
|
|
1284 | FREETMPS; |
|
|
1285 | LEAVE; |
|
|
1286 | continue; |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | ta->next = SvSTATE (next_sv); |
|
|
1290 | |
|
|
1291 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1292 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1293 | { |
|
|
1294 | UNLOCK; |
|
|
1295 | SvREFCNT_dec (next_sv); |
|
|
1296 | /* coro_nready is already taken care of by destroy */ |
|
|
1297 | continue; |
|
|
1298 | } |
|
|
1299 | |
|
|
1300 | --coro_nready; |
939 | UNLOCK; |
1301 | UNLOCK; |
940 | |
|
|
941 | if (next) |
|
|
942 | break; |
1302 | break; |
943 | |
|
|
944 | { |
|
|
945 | dSP; |
|
|
946 | |
|
|
947 | ENTER; |
|
|
948 | SAVETMPS; |
|
|
949 | |
|
|
950 | PUSHMARK (SP); |
|
|
951 | PUTBACK; |
|
|
952 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
953 | |
|
|
954 | FREETMPS; |
|
|
955 | LEAVE; |
|
|
956 | } |
1303 | } |
957 | } |
|
|
958 | |
|
|
959 | prev = SvRV (current); |
|
|
960 | SvRV (current) = next; |
|
|
961 | |
1304 | |
962 | /* free this only after the transfer */ |
1305 | /* free this only after the transfer */ |
|
|
1306 | prev_sv = SvRV (coro_current); |
|
|
1307 | ta->prev = SvSTATE (prev_sv); |
|
|
1308 | TRANSFER_CHECK (*ta); |
|
|
1309 | assert (ta->next->flags & CF_READY); |
|
|
1310 | ta->next->flags &= ~CF_READY; |
|
|
1311 | SvRV_set (coro_current, next_sv); |
|
|
1312 | |
963 | LOCK; |
1313 | LOCK; |
964 | free_coro_mortal (); |
1314 | free_coro_mortal (aTHX); |
|
|
1315 | coro_mortal = prev_sv; |
965 | UNLOCK; |
1316 | UNLOCK; |
966 | coro_mortal = prev; |
|
|
967 | |
|
|
968 | ta->prev = SvSTATE (prev); |
|
|
969 | ta->next = SvSTATE (next); |
|
|
970 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
971 | |
|
|
972 | ta->next->flags &= ~CF_READY; |
|
|
973 | } |
1317 | } |
974 | |
1318 | |
975 | static void |
1319 | static void |
976 | prepare_cede (struct transfer_args *ta) |
1320 | prepare_cede (pTHX_ struct transfer_args *ta) |
977 | { |
1321 | { |
978 | api_ready (GvSV (coro_current)); |
1322 | api_ready (coro_current); |
979 | |
|
|
980 | prepare_schedule (ta); |
1323 | prepare_schedule (aTHX_ ta); |
|
|
1324 | } |
|
|
1325 | |
|
|
1326 | static int |
|
|
1327 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1328 | { |
|
|
1329 | if (coro_nready) |
|
|
1330 | { |
|
|
1331 | SV *prev = SvRV (coro_current); |
|
|
1332 | prepare_schedule (aTHX_ ta); |
|
|
1333 | api_ready (prev); |
|
|
1334 | return 1; |
|
|
1335 | } |
|
|
1336 | else |
|
|
1337 | return 0; |
981 | } |
1338 | } |
982 | |
1339 | |
983 | static void |
1340 | static void |
984 | api_schedule (void) |
1341 | api_schedule (void) |
985 | { |
1342 | { |
986 | dTHX; |
1343 | dTHX; |
987 | struct transfer_args ta; |
1344 | struct transfer_args ta; |
988 | |
1345 | |
989 | prepare_schedule (&ta); |
1346 | prepare_schedule (aTHX_ &ta); |
990 | TRANSFER (ta); |
1347 | TRANSFER (ta); |
991 | } |
1348 | } |
992 | |
1349 | |
993 | static void |
1350 | static int |
994 | api_cede (void) |
1351 | api_cede (void) |
995 | { |
1352 | { |
996 | dTHX; |
1353 | dTHX; |
997 | struct transfer_args ta; |
1354 | struct transfer_args ta; |
998 | |
1355 | |
999 | prepare_cede (&ta); |
1356 | prepare_cede (aTHX_ &ta); |
|
|
1357 | |
|
|
1358 | if (expect_true (ta.prev != ta.next)) |
|
|
1359 | { |
1000 | TRANSFER (ta); |
1360 | TRANSFER (ta); |
|
|
1361 | return 1; |
|
|
1362 | } |
|
|
1363 | else |
|
|
1364 | return 0; |
1001 | } |
1365 | } |
1002 | |
1366 | |
|
|
1367 | static int |
|
|
1368 | api_cede_notself (void) |
|
|
1369 | { |
|
|
1370 | dTHX; |
|
|
1371 | struct transfer_args ta; |
|
|
1372 | |
|
|
1373 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1374 | { |
|
|
1375 | TRANSFER (ta); |
|
|
1376 | return 1; |
|
|
1377 | } |
|
|
1378 | else |
|
|
1379 | return 0; |
|
|
1380 | } |
|
|
1381 | |
|
|
1382 | static void |
|
|
1383 | api_trace (SV *coro_sv, int flags) |
|
|
1384 | { |
|
|
1385 | dTHX; |
|
|
1386 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1387 | |
|
|
1388 | if (flags & CC_TRACE) |
|
|
1389 | { |
|
|
1390 | if (!coro->cctx) |
|
|
1391 | coro->cctx = cctx_new (); |
|
|
1392 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1393 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1394 | |
|
|
1395 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1396 | } |
|
|
1397 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1398 | { |
|
|
1399 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1400 | |
|
|
1401 | if (coro->flags & CF_RUNNING) |
|
|
1402 | PL_runops = RUNOPS_DEFAULT; |
|
|
1403 | else |
|
|
1404 | coro->runops = RUNOPS_DEFAULT; |
|
|
1405 | } |
|
|
1406 | } |
|
|
1407 | |
1003 | MODULE = Coro::State PACKAGE = Coro::State |
1408 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1004 | |
1409 | |
1005 | PROTOTYPES: DISABLE |
1410 | PROTOTYPES: DISABLE |
1006 | |
1411 | |
1007 | BOOT: |
1412 | BOOT: |
1008 | { |
1413 | { |
1009 | #ifdef USE_ITHREADS |
1414 | #ifdef USE_ITHREADS |
1010 | MUTEX_INIT (&coro_mutex); |
1415 | MUTEX_INIT (&coro_mutex); |
1011 | #endif |
1416 | #endif |
1012 | BOOT_PAGESIZE; |
1417 | BOOT_PAGESIZE; |
1013 | |
1418 | |
|
|
1419 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1420 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1421 | |
1014 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1422 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1015 | |
1423 | |
1016 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1424 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1017 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1425 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1018 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1426 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1427 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1019 | |
1428 | |
1020 | main_mainstack = PL_mainstack; |
1429 | main_mainstack = PL_mainstack; |
|
|
1430 | main_top_env = PL_top_env; |
|
|
1431 | |
|
|
1432 | while (main_top_env->je_prev) |
|
|
1433 | main_top_env = main_top_env->je_prev; |
1021 | |
1434 | |
1022 | coroapi.ver = CORO_API_VERSION; |
1435 | coroapi.ver = CORO_API_VERSION; |
1023 | coroapi.transfer = api_transfer; |
1436 | coroapi.transfer = api_transfer; |
1024 | |
1437 | |
1025 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1438 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
1032 | struct coro *coro; |
1445 | struct coro *coro; |
1033 | HV *hv; |
1446 | HV *hv; |
1034 | int i; |
1447 | int i; |
1035 | |
1448 | |
1036 | Newz (0, coro, 1, struct coro); |
1449 | Newz (0, coro, 1, struct coro); |
1037 | coro->args = newAV (); |
1450 | coro->args = newAV (); |
|
|
1451 | coro->flags = CF_NEW; |
1038 | |
1452 | |
|
|
1453 | if (coro_first) coro_first->prev = coro; |
|
|
1454 | coro->next = coro_first; |
|
|
1455 | coro_first = coro; |
|
|
1456 | |
1039 | hv = newHV (); |
1457 | coro->hv = hv = newHV (); |
1040 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1458 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1041 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1459 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1042 | |
1460 | |
|
|
1461 | av_extend (coro->args, items - 1); |
1043 | for (i = 1; i < items; i++) |
1462 | for (i = 1; i < items; i++) |
1044 | av_push (coro->args, newSVsv (ST (i))); |
1463 | av_push (coro->args, newSVsv (ST (i))); |
1045 | } |
1464 | } |
1046 | OUTPUT: |
1465 | OUTPUT: |
1047 | RETVAL |
1466 | RETVAL |
1048 | |
1467 | |
|
|
1468 | # these not obviously related functions are all rolled into the same xs |
|
|
1469 | # function to increase chances that they all will call transfer with the same |
|
|
1470 | # stack offset |
1049 | void |
1471 | void |
1050 | _set_stacklevel (...) |
1472 | _set_stacklevel (...) |
1051 | ALIAS: |
1473 | ALIAS: |
1052 | Coro::State::transfer = 1 |
1474 | Coro::State::transfer = 1 |
1053 | Coro::schedule = 2 |
1475 | Coro::schedule = 2 |
1054 | Coro::cede = 3 |
1476 | Coro::cede = 3 |
1055 | Coro::Cont::yield = 4 |
1477 | Coro::cede_notself = 4 |
1056 | CODE: |
1478 | CODE: |
1057 | { |
1479 | { |
1058 | struct transfer_args ta; |
1480 | struct transfer_args ta; |
1059 | |
1481 | |
1060 | switch (ix) |
1482 | switch (ix) |
1061 | { |
1483 | { |
1062 | case 0: |
1484 | case 0: |
1063 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1485 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1064 | ta.next = 0; |
1486 | ta.next = 0; |
1065 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1066 | break; |
1487 | break; |
1067 | |
1488 | |
1068 | case 1: |
1489 | case 1: |
1069 | if (items != 3) |
1490 | if (items != 2) |
1070 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
1491 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1071 | |
1492 | |
1072 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
1493 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1073 | break; |
1494 | break; |
1074 | |
1495 | |
1075 | case 2: |
1496 | case 2: |
1076 | prepare_schedule (&ta); |
1497 | prepare_schedule (aTHX_ &ta); |
1077 | break; |
1498 | break; |
1078 | |
1499 | |
1079 | case 3: |
1500 | case 3: |
1080 | prepare_cede (&ta); |
1501 | prepare_cede (aTHX_ &ta); |
1081 | break; |
1502 | break; |
1082 | |
1503 | |
1083 | case 4: |
1504 | case 4: |
1084 | { |
1505 | if (!prepare_cede_notself (aTHX_ &ta)) |
1085 | SV *yieldstack; |
1506 | XSRETURN_EMPTY; |
1086 | SV *sv; |
|
|
1087 | AV *defav = GvAV (PL_defgv); |
|
|
1088 | |
1507 | |
1089 | yieldstack = *hv_fetch ( |
|
|
1090 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1091 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1092 | 0 |
|
|
1093 | ); |
|
|
1094 | |
|
|
1095 | /* set up @_ -- ugly */ |
|
|
1096 | av_clear (defav); |
|
|
1097 | av_fill (defav, items - 1); |
|
|
1098 | while (items--) |
|
|
1099 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1100 | |
|
|
1101 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1102 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1103 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1104 | ta.flags = 0; |
|
|
1105 | SvREFCNT_dec (sv); |
|
|
1106 | } |
|
|
1107 | break; |
1508 | break; |
1108 | |
|
|
1109 | } |
1509 | } |
1110 | |
1510 | |
|
|
1511 | BARRIER; |
1111 | TRANSFER (ta); |
1512 | TRANSFER (ta); |
1112 | } |
|
|
1113 | |
1513 | |
1114 | void |
1514 | if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev)) |
1115 | _clone_state_from (SV *dst, SV *src) |
1515 | XSRETURN_YES; |
|
|
1516 | } |
|
|
1517 | |
|
|
1518 | bool |
|
|
1519 | _destroy (SV *coro_sv) |
1116 | CODE: |
1520 | CODE: |
1117 | { |
1521 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1118 | struct coro *coro_src = SvSTATE (src); |
1522 | OUTPUT: |
1119 | |
1523 | RETVAL |
1120 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1121 | |
|
|
1122 | ++coro_src->refcnt; |
|
|
1123 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1124 | } |
|
|
1125 | |
1524 | |
1126 | void |
1525 | void |
1127 | _exit (code) |
1526 | _exit (code) |
1128 | int code |
1527 | int code |
1129 | PROTOTYPE: $ |
1528 | PROTOTYPE: $ |
1130 | CODE: |
1529 | CODE: |
1131 | _exit (code); |
1530 | _exit (code); |
1132 | |
1531 | |
1133 | int |
1532 | int |
|
|
1533 | cctx_stacksize (int new_stacksize = 0) |
|
|
1534 | CODE: |
|
|
1535 | RETVAL = coro_stacksize; |
|
|
1536 | if (new_stacksize) |
|
|
1537 | coro_stacksize = new_stacksize; |
|
|
1538 | OUTPUT: |
|
|
1539 | RETVAL |
|
|
1540 | |
|
|
1541 | int |
1134 | cctx_count () |
1542 | cctx_count () |
1135 | CODE: |
1543 | CODE: |
1136 | RETVAL = cctx_count; |
1544 | RETVAL = cctx_count; |
1137 | OUTPUT: |
1545 | OUTPUT: |
1138 | RETVAL |
1546 | RETVAL |
… | |
… | |
1142 | CODE: |
1550 | CODE: |
1143 | RETVAL = cctx_idle; |
1551 | RETVAL = cctx_idle; |
1144 | OUTPUT: |
1552 | OUTPUT: |
1145 | RETVAL |
1553 | RETVAL |
1146 | |
1554 | |
|
|
1555 | void |
|
|
1556 | list () |
|
|
1557 | PPCODE: |
|
|
1558 | { |
|
|
1559 | struct coro *coro; |
|
|
1560 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1561 | if (coro->hv) |
|
|
1562 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1563 | } |
|
|
1564 | |
|
|
1565 | void |
|
|
1566 | call (Coro::State coro, SV *coderef) |
|
|
1567 | ALIAS: |
|
|
1568 | eval = 1 |
|
|
1569 | CODE: |
|
|
1570 | { |
|
|
1571 | if (coro->mainstack) |
|
|
1572 | { |
|
|
1573 | struct coro temp; |
|
|
1574 | Zero (&temp, 1, struct coro); |
|
|
1575 | |
|
|
1576 | if (!(coro->flags & CF_RUNNING)) |
|
|
1577 | { |
|
|
1578 | save_perl (aTHX_ &temp); |
|
|
1579 | load_perl (aTHX_ coro); |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | { |
|
|
1583 | dSP; |
|
|
1584 | ENTER; |
|
|
1585 | SAVETMPS; |
|
|
1586 | PUSHMARK (SP); |
|
|
1587 | PUTBACK; |
|
|
1588 | if (ix) |
|
|
1589 | eval_sv (coderef, 0); |
|
|
1590 | else |
|
|
1591 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1592 | SPAGAIN; |
|
|
1593 | FREETMPS; |
|
|
1594 | LEAVE; |
|
|
1595 | PUTBACK; |
|
|
1596 | } |
|
|
1597 | |
|
|
1598 | if (!(coro->flags & CF_RUNNING)) |
|
|
1599 | { |
|
|
1600 | save_perl (aTHX_ coro); |
|
|
1601 | load_perl (aTHX_ &temp); |
|
|
1602 | } |
|
|
1603 | } |
|
|
1604 | } |
|
|
1605 | |
|
|
1606 | SV * |
|
|
1607 | is_ready (Coro::State coro) |
|
|
1608 | PROTOTYPE: $ |
|
|
1609 | ALIAS: |
|
|
1610 | is_ready = CF_READY |
|
|
1611 | is_running = CF_RUNNING |
|
|
1612 | is_new = CF_NEW |
|
|
1613 | is_destroyed = CF_DESTROYED |
|
|
1614 | CODE: |
|
|
1615 | RETVAL = boolSV (coro->flags & ix); |
|
|
1616 | OUTPUT: |
|
|
1617 | RETVAL |
|
|
1618 | |
|
|
1619 | void |
|
|
1620 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1621 | |
|
|
1622 | SV * |
|
|
1623 | has_stack (Coro::State coro) |
|
|
1624 | PROTOTYPE: $ |
|
|
1625 | CODE: |
|
|
1626 | RETVAL = boolSV (!!coro->cctx); |
|
|
1627 | OUTPUT: |
|
|
1628 | RETVAL |
|
|
1629 | |
|
|
1630 | int |
|
|
1631 | is_traced (Coro::State coro) |
|
|
1632 | PROTOTYPE: $ |
|
|
1633 | CODE: |
|
|
1634 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1635 | OUTPUT: |
|
|
1636 | RETVAL |
|
|
1637 | |
|
|
1638 | IV |
|
|
1639 | rss (Coro::State coro) |
|
|
1640 | PROTOTYPE: $ |
|
|
1641 | ALIAS: |
|
|
1642 | usecount = 1 |
|
|
1643 | CODE: |
|
|
1644 | switch (ix) |
|
|
1645 | { |
|
|
1646 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
1647 | case 1: RETVAL = coro->usecount; break; |
|
|
1648 | } |
|
|
1649 | OUTPUT: |
|
|
1650 | RETVAL |
|
|
1651 | |
|
|
1652 | |
1147 | MODULE = Coro::State PACKAGE = Coro |
1653 | MODULE = Coro::State PACKAGE = Coro |
1148 | |
1654 | |
1149 | BOOT: |
1655 | BOOT: |
1150 | { |
1656 | { |
1151 | int i; |
1657 | int i; |
|
|
1658 | |
|
|
1659 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1660 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1661 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
|
|
1662 | |
|
|
1663 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1664 | SvREADONLY_on (coro_current); |
1152 | |
1665 | |
1153 | coro_stash = gv_stashpv ("Coro", TRUE); |
1666 | coro_stash = gv_stashpv ("Coro", TRUE); |
1154 | |
1667 | |
1155 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1668 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1156 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1669 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1157 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1670 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1158 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1671 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1159 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1672 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1160 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1673 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1161 | |
1674 | |
1162 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1163 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1164 | |
|
|
1165 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1675 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1166 | coro_ready[i] = newAV (); |
1676 | coro_ready[i] = newAV (); |
1167 | |
1677 | |
1168 | { |
1678 | { |
1169 | SV *sv = perl_get_sv("Coro::API", 1); |
1679 | SV *sv = perl_get_sv("Coro::API", 1); |
1170 | |
1680 | |
1171 | coroapi.schedule = api_schedule; |
1681 | coroapi.schedule = api_schedule; |
1172 | coroapi.cede = api_cede; |
1682 | coroapi.cede = api_cede; |
|
|
1683 | coroapi.cede_notself = api_cede_notself; |
1173 | coroapi.ready = api_ready; |
1684 | coroapi.ready = api_ready; |
1174 | coroapi.is_ready = api_is_ready; |
1685 | coroapi.is_ready = api_is_ready; |
1175 | coroapi.nready = &coro_nready; |
1686 | coroapi.nready = &coro_nready; |
1176 | coroapi.current = coro_current; |
1687 | coroapi.current = coro_current; |
1177 | |
1688 | |
1178 | GCoroAPI = &coroapi; |
1689 | GCoroAPI = &coroapi; |
1179 | sv_setiv (sv, (IV)&coroapi); |
1690 | sv_setiv (sv, (IV)&coroapi); |
1180 | SvREADONLY_on (sv); |
1691 | SvREADONLY_on (sv); |
1181 | } |
1692 | } |
1182 | } |
1693 | } |
|
|
1694 | |
|
|
1695 | void |
|
|
1696 | _set_current (SV *current) |
|
|
1697 | PROTOTYPE: $ |
|
|
1698 | CODE: |
|
|
1699 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1700 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1183 | |
1701 | |
1184 | int |
1702 | int |
1185 | prio (Coro::State coro, int newprio = 0) |
1703 | prio (Coro::State coro, int newprio = 0) |
1186 | ALIAS: |
1704 | ALIAS: |
1187 | nice = 1 |
1705 | nice = 1 |
… | |
… | |
1190 | RETVAL = coro->prio; |
1708 | RETVAL = coro->prio; |
1191 | |
1709 | |
1192 | if (items > 1) |
1710 | if (items > 1) |
1193 | { |
1711 | { |
1194 | if (ix) |
1712 | if (ix) |
1195 | newprio += coro->prio; |
1713 | newprio = coro->prio - newprio; |
1196 | |
1714 | |
1197 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1715 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1198 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1716 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1199 | |
1717 | |
1200 | coro->prio = newprio; |
1718 | coro->prio = newprio; |
1201 | } |
1719 | } |
1202 | } |
1720 | } |
|
|
1721 | OUTPUT: |
|
|
1722 | RETVAL |
1203 | |
1723 | |
1204 | SV * |
1724 | SV * |
1205 | ready (SV *self) |
1725 | ready (SV *self) |
1206 | PROTOTYPE: $ |
1726 | PROTOTYPE: $ |
1207 | CODE: |
1727 | CODE: |
1208 | RETVAL = boolSV (api_ready (self)); |
1728 | RETVAL = boolSV (api_ready (self)); |
1209 | OUTPUT: |
1729 | OUTPUT: |
1210 | RETVAL |
1730 | RETVAL |
1211 | |
1731 | |
1212 | SV * |
|
|
1213 | is_ready (SV *self) |
|
|
1214 | PROTOTYPE: $ |
|
|
1215 | CODE: |
|
|
1216 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1217 | OUTPUT: |
|
|
1218 | RETVAL |
|
|
1219 | |
|
|
1220 | int |
1732 | int |
1221 | nready (...) |
1733 | nready (...) |
1222 | PROTOTYPE: |
1734 | PROTOTYPE: |
1223 | CODE: |
1735 | CODE: |
1224 | RETVAL = coro_nready; |
1736 | RETVAL = coro_nready; |
1225 | OUTPUT: |
1737 | OUTPUT: |
1226 | RETVAL |
1738 | RETVAL |
1227 | |
1739 | |
|
|
1740 | void |
|
|
1741 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
1742 | PROTOTYPE: $;$ |
|
|
1743 | CODE: |
|
|
1744 | SvREFCNT_dec (self->throw); |
|
|
1745 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1746 | |
|
|
1747 | # for async_pool speedup |
|
|
1748 | void |
|
|
1749 | _pool_1 (SV *cb) |
|
|
1750 | CODE: |
|
|
1751 | { |
|
|
1752 | struct coro *coro = SvSTATE (coro_current); |
|
|
1753 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1754 | AV *defav = GvAV (PL_defgv); |
|
|
1755 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1756 | AV *invoke_av; |
|
|
1757 | int i, len; |
|
|
1758 | |
|
|
1759 | if (!invoke) |
|
|
1760 | croak ("\3terminate\2\n"); |
|
|
1761 | |
|
|
1762 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1763 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1764 | |
|
|
1765 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1766 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1767 | |
|
|
1768 | invoke_av = (AV *)SvRV (invoke); |
|
|
1769 | len = av_len (invoke_av); |
|
|
1770 | |
|
|
1771 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1772 | |
|
|
1773 | if (len > 0) |
|
|
1774 | { |
|
|
1775 | av_fill (defav, len - 1); |
|
|
1776 | for (i = 0; i < len; ++i) |
|
|
1777 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1778 | } |
|
|
1779 | |
|
|
1780 | SvREFCNT_dec (invoke); |
|
|
1781 | } |
|
|
1782 | |
|
|
1783 | void |
|
|
1784 | _pool_2 (SV *cb) |
|
|
1785 | CODE: |
|
|
1786 | { |
|
|
1787 | struct coro *coro = SvSTATE (coro_current); |
|
|
1788 | |
|
|
1789 | sv_setsv (cb, &PL_sv_undef); |
|
|
1790 | |
|
|
1791 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1792 | coro->saved_deffh = 0; |
|
|
1793 | |
|
|
1794 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1795 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1796 | croak ("\3terminate\2\n"); |
|
|
1797 | |
|
|
1798 | av_clear (GvAV (PL_defgv)); |
|
|
1799 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1800 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1801 | |
|
|
1802 | coro->prio = 0; |
|
|
1803 | |
|
|
1804 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1805 | api_trace (coro_current, 0); |
|
|
1806 | |
|
|
1807 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1808 | } |
|
|
1809 | |
|
|
1810 | |
1228 | MODULE = Coro::State PACKAGE = Coro::AIO |
1811 | MODULE = Coro::State PACKAGE = Coro::AIO |
1229 | |
1812 | |
1230 | SV * |
1813 | SV * |
1231 | _get_state () |
1814 | _get_state () |
1232 | CODE: |
1815 | CODE: |
1233 | { |
1816 | { |
1234 | struct { |
1817 | struct io_state *data; |
1235 | int errorno; |
|
|
1236 | int laststype; |
|
|
1237 | int laststatval; |
|
|
1238 | Stat_t statcache; |
|
|
1239 | } data; |
|
|
1240 | |
1818 | |
|
|
1819 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1820 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1821 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1822 | SvPOK_only (RETVAL); |
|
|
1823 | |
1241 | data.errorno = errno; |
1824 | data->errorno = errno; |
1242 | data.laststype = PL_laststype; |
1825 | data->laststype = PL_laststype; |
1243 | data.laststatval = PL_laststatval; |
1826 | data->laststatval = PL_laststatval; |
1244 | data.statcache = PL_statcache; |
1827 | data->statcache = PL_statcache; |
1245 | |
|
|
1246 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1247 | } |
1828 | } |
1248 | OUTPUT: |
1829 | OUTPUT: |
1249 | RETVAL |
1830 | RETVAL |
1250 | |
1831 | |
1251 | void |
1832 | void |
1252 | _set_state (char *data_) |
1833 | _set_state (char *data_) |
1253 | PROTOTYPE: $ |
1834 | PROTOTYPE: $ |
1254 | CODE: |
1835 | CODE: |
1255 | { |
1836 | { |
1256 | struct { |
1837 | struct io_state *data = (void *)data_; |
1257 | int errorno; |
|
|
1258 | int laststype; |
|
|
1259 | int laststatval; |
|
|
1260 | Stat_t statcache; |
|
|
1261 | } *data = (void *)data_; |
|
|
1262 | |
1838 | |
1263 | errno = data->errorno; |
1839 | errno = data->errorno; |
1264 | PL_laststype = data->laststype; |
1840 | PL_laststype = data->laststype; |
1265 | PL_laststatval = data->laststatval; |
1841 | PL_laststatval = data->laststatval; |
1266 | PL_statcache = data->statcache; |
1842 | PL_statcache = data->statcache; |
1267 | } |
1843 | } |
|
|
1844 | |