1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
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2 | |
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3 | #define PERL_NO_GET_CONTEXT |
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4 | #define PERL_EXT |
2 | |
5 | |
3 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
4 | #include "perl.h" |
7 | #include "perl.h" |
5 | #include "XSUB.h" |
8 | #include "XSUB.h" |
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9 | #include "perliol.h" |
6 | |
10 | |
7 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
8 | |
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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 | |
12 | |
40 | #include <stdio.h> |
13 | #include <stdio.h> |
41 | #include <errno.h> |
14 | #include <errno.h> |
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15 | #include <assert.h> |
42 | |
16 | |
43 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
17 | #ifdef WIN32 |
44 | # undef STACKGUARD |
18 | # undef setjmp |
45 | #endif |
19 | # undef longjmp |
46 | |
20 | # undef _exit |
47 | #ifndef STACKGUARD |
21 | # define setjmp _setjmp // deep magic, don't ask |
48 | # define STACKGUARD 0 |
22 | #else |
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23 | # include <inttypes.h> /* most portable stdint.h */ |
49 | #endif |
24 | #endif |
50 | |
25 | |
51 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
52 | # include <unistd.h> |
27 | # include <unistd.h> |
53 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
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69 | #else |
44 | #else |
70 | # define PAGESIZE 0 |
45 | # define PAGESIZE 0 |
71 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
72 | #endif |
47 | #endif |
73 | |
48 | |
74 | /* The next macro should declare a variable stacklevel that contains and approximation |
49 | #if CORO_USE_VALGRIND |
75 | * to the current C stack pointer. Its property is that it changes with each call |
50 | # include <valgrind/valgrind.h> |
76 | * and should be unique. */ |
51 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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52 | #else |
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53 | # define REGISTER_STACK(cctx,start,end) |
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54 | #endif |
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55 | |
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56 | /* the maximum number of idle cctx that will be pooled */ |
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57 | #define MAX_IDLE_CCTX 8 |
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58 | |
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59 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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60 | (PERL_REVISION > (a) \ |
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61 | || (PERL_REVISION == (a) \ |
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62 | && (PERL_VERSION > (b) \ |
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63 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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64 | |
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65 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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66 | # ifndef PL_ppaddr |
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67 | # define PL_ppaddr ppaddr |
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68 | # endif |
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69 | # ifndef call_sv |
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70 | # define call_sv perl_call_sv |
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71 | # endif |
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72 | # ifndef get_sv |
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73 | # define get_sv perl_get_sv |
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74 | # endif |
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75 | # ifndef get_cv |
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76 | # define get_cv perl_get_cv |
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77 | # endif |
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78 | # ifndef IS_PADGV |
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79 | # define IS_PADGV(v) 0 |
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80 | # endif |
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81 | # ifndef IS_PADCONST |
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82 | # define IS_PADCONST(v) 0 |
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83 | # endif |
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84 | #endif |
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85 | |
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86 | /* 5.11 */ |
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87 | #ifndef CxHASARGS |
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88 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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89 | #endif |
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90 | |
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91 | /* 5.10.0 */ |
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92 | #ifndef SvREFCNT_inc_NN |
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93 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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94 | #endif |
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95 | |
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96 | /* 5.8.8 */ |
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97 | #ifndef GV_NOTQUAL |
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98 | # define GV_NOTQUAL 0 |
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99 | #endif |
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100 | #ifndef newSV |
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101 | # define newSV(l) NEWSV(0,l) |
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102 | #endif |
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103 | |
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104 | /* 5.8.7 */ |
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105 | #ifndef SvRV_set |
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106 | # define SvRV_set(s,v) SvRV(s) = (v) |
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107 | #endif |
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108 | |
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109 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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110 | # undef CORO_STACKGUARD |
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111 | #endif |
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112 | |
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113 | #ifndef CORO_STACKGUARD |
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114 | # define CORO_STACKGUARD 0 |
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115 | #endif |
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116 | |
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117 | /* prefer perl internal functions over our own? */ |
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118 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
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119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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120 | #endif |
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121 | |
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122 | /* The next macros try to return the current stack pointer, in an as |
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123 | * portable way as possible. */ |
77 | #define dSTACKLEVEL int stacklevel |
124 | #define dSTACKLEVEL volatile char stacklevel |
78 | #define STACKLEVEL ((void *)&stacklevel) |
125 | #define STACKLEVEL ((void *)&stacklevel) |
79 | |
126 | |
80 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
81 | |
128 | |
82 | #if __GNUC__ >= 3 |
129 | #if __GNUC__ >= 3 |
83 | # define attribute(x) __attribute__(x) |
130 | # define attribute(x) __attribute__(x) |
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131 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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132 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
84 | #else |
133 | #else |
85 | # define attribute(x) |
134 | # define attribute(x) |
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135 | # define BARRIER |
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136 | # define expect(expr,value) (expr) |
86 | #endif |
137 | #endif |
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138 | |
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139 | #define expect_false(expr) expect ((expr) != 0, 0) |
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140 | #define expect_true(expr) expect ((expr) != 0, 1) |
87 | |
141 | |
88 | #define NOINLINE attribute ((noinline)) |
142 | #define NOINLINE attribute ((noinline)) |
89 | |
143 | |
90 | #include "CoroAPI.h" |
144 | #include "CoroAPI.h" |
91 | |
145 | |
92 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
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93 | |
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94 | #ifdef USE_ITHREADS |
146 | #ifdef USE_ITHREADS |
95 | static perl_mutex coro_mutex; |
147 | static perl_mutex coro_lock; |
96 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
148 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
97 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
149 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
98 | #else |
150 | #else |
99 | # define LOCK (void)0 |
151 | # define LOCK (void)0 |
100 | # define UNLOCK (void)0 |
152 | # define UNLOCK (void)0 |
101 | #endif |
153 | #endif |
102 | |
154 | |
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155 | /* helper storage struct for Coro::AIO */ |
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156 | struct io_state |
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157 | { |
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158 | AV *res; |
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159 | int errorno; |
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160 | I32 laststype; |
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161 | int laststatval; |
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162 | Stat_t statcache; |
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163 | }; |
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164 | |
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165 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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166 | |
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167 | static size_t coro_stacksize = CORO_STACKSIZE; |
103 | static struct CoroAPI coroapi; |
168 | static struct CoroAPI coroapi; |
104 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
169 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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170 | static JMPENV *main_top_env; |
105 | static HV *coro_state_stash, *coro_stash; |
171 | static HV *coro_state_stash, *coro_stash; |
106 | static SV *coro_mortal; /* will be freed after next transfer */ |
172 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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173 | |
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174 | static GV *irsgv; /* $/ */ |
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175 | static GV *stdoutgv; /* *STDOUT */ |
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176 | static SV *rv_diehook; |
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177 | static SV *rv_warnhook; |
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178 | static HV *hv_sig; /* %SIG */ |
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179 | |
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180 | /* async_pool helper stuff */ |
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181 | static SV *sv_pool_rss; |
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182 | static SV *sv_pool_size; |
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183 | static AV *av_async_pool; |
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184 | |
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185 | /* Coro::AnyEvent */ |
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186 | static SV *sv_activity; |
107 | |
187 | |
108 | static struct coro_cctx *cctx_first; |
188 | static struct coro_cctx *cctx_first; |
109 | static int cctx_count, cctx_idle; |
189 | static int cctx_count, cctx_idle; |
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190 | |
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191 | enum { |
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192 | CC_MAPPED = 0x01, |
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193 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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194 | CC_TRACE = 0x04, |
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195 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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196 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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197 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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198 | }; |
110 | |
199 | |
111 | /* this is a structure representing a c-level coroutine */ |
200 | /* this is a structure representing a c-level coroutine */ |
112 | typedef struct coro_cctx { |
201 | typedef struct coro_cctx { |
113 | struct coro_cctx *next; |
202 | struct coro_cctx *next; |
114 | |
203 | |
115 | /* the stack */ |
204 | /* the stack */ |
116 | void *sptr; |
205 | void *sptr; |
117 | long ssize; /* positive == mmap, otherwise malloc */ |
206 | size_t ssize; |
118 | |
207 | |
119 | /* cpu state */ |
208 | /* cpu state */ |
120 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
209 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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210 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
121 | JMPENV *top_env; |
211 | JMPENV *top_env; |
122 | coro_context cctx; |
212 | coro_context cctx; |
123 | |
213 | |
124 | #if USE_VALGRIND |
214 | #if CORO_USE_VALGRIND |
125 | int valgrind_id; |
215 | int valgrind_id; |
126 | #endif |
216 | #endif |
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217 | unsigned char flags; |
127 | } coro_cctx; |
218 | } coro_cctx; |
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219 | |
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220 | enum { |
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221 | CF_RUNNING = 0x0001, /* coroutine is running */ |
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222 | CF_READY = 0x0002, /* coroutine is ready */ |
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223 | CF_NEW = 0x0004, /* has never been switched to */ |
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224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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225 | }; |
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226 | |
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227 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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228 | typedef struct { |
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229 | SV *defsv; |
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230 | AV *defav; |
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231 | SV *errsv; |
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232 | SV *irsgv; |
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233 | #define VAR(name,type) type name; |
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234 | # include "state.h" |
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235 | #undef VAR |
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236 | } perl_slots; |
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237 | |
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238 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
128 | |
239 | |
129 | /* this is a structure representing a perl-level coroutine */ |
240 | /* this is a structure representing a perl-level coroutine */ |
130 | struct coro { |
241 | struct coro { |
131 | /* the c coroutine allocated to this perl coroutine, if any */ |
242 | /* the c coroutine allocated to this perl coroutine, if any */ |
132 | coro_cctx *cctx; |
243 | coro_cctx *cctx; |
133 | |
244 | |
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245 | /* process data */ |
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246 | AV *mainstack; |
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247 | perl_slots *slot; /* basically the saved sp */ |
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248 | |
134 | /* data associated with this coroutine (initial args) */ |
249 | AV *args; /* data associated with this coroutine (initial args) */ |
135 | AV *args; |
250 | int refcnt; /* coroutines are refcounted, yes */ |
136 | int refcnt; |
251 | int flags; /* CF_ flags */ |
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252 | HV *hv; /* the perl hash associated with this coro, if any */ |
137 | |
253 | |
138 | /* optionally saved, might be zero */ |
254 | /* statistics */ |
139 | AV *defav; |
255 | int usecount; /* number of transfers to this coro */ |
140 | SV *defsv; |
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141 | SV *errsv; |
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142 | |
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143 | #define VAR(name,type) type name; |
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144 | # include "state.h" |
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145 | #undef VAR |
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146 | |
256 | |
147 | /* coro process data */ |
257 | /* coro process data */ |
148 | int prio; |
258 | int prio; |
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259 | SV *throw; /* exception to be thrown */ |
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260 | |
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261 | /* async_pool */ |
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262 | SV *saved_deffh; |
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263 | |
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264 | /* linked list */ |
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265 | struct coro *next, *prev; |
149 | }; |
266 | }; |
150 | |
267 | |
151 | typedef struct coro *Coro__State; |
268 | typedef struct coro *Coro__State; |
152 | typedef struct coro *Coro__State_or_hashref; |
269 | typedef struct coro *Coro__State_or_hashref; |
153 | |
270 | |
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271 | /** Coro ********************************************************************/ |
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272 | |
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273 | #define PRIO_MAX 3 |
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274 | #define PRIO_HIGH 1 |
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275 | #define PRIO_NORMAL 0 |
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276 | #define PRIO_LOW -1 |
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277 | #define PRIO_IDLE -3 |
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278 | #define PRIO_MIN -4 |
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279 | |
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280 | /* for Coro.pm */ |
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281 | static SV *coro_current; |
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282 | static SV *coro_readyhook; |
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283 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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284 | static int coro_nready; |
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285 | static struct coro *coro_first; |
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286 | |
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287 | /** lowlevel stuff **********************************************************/ |
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288 | |
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289 | static SV * |
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290 | coro_get_sv (pTHX_ const char *name, int create) |
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291 | { |
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292 | #if PERL_VERSION_ATLEAST (5,10,0) |
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293 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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294 | get_sv (name, create); |
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295 | #endif |
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296 | return get_sv (name, create); |
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297 | } |
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298 | |
154 | static AV * |
299 | static AV * |
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300 | coro_get_av (pTHX_ const char *name, int create) |
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301 | { |
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302 | #if PERL_VERSION_ATLEAST (5,10,0) |
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303 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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304 | get_av (name, create); |
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305 | #endif |
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306 | return get_av (name, create); |
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307 | } |
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308 | |
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309 | static HV * |
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310 | coro_get_hv (pTHX_ const char *name, int create) |
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311 | { |
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312 | #if PERL_VERSION_ATLEAST (5,10,0) |
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313 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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314 | get_hv (name, create); |
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315 | #endif |
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316 | return get_hv (name, create); |
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317 | } |
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318 | |
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319 | static AV * |
155 | coro_clone_padlist (CV *cv) |
320 | coro_clone_padlist (pTHX_ CV *cv) |
156 | { |
321 | { |
157 | AV *padlist = CvPADLIST (cv); |
322 | AV *padlist = CvPADLIST (cv); |
158 | AV *newpadlist, *newpad; |
323 | AV *newpadlist, *newpad; |
159 | |
324 | |
160 | newpadlist = newAV (); |
325 | newpadlist = newAV (); |
161 | AvREAL_off (newpadlist); |
326 | AvREAL_off (newpadlist); |
162 | #if PERL_VERSION_ATLEAST (5,9,0) |
327 | #if PERL_VERSION_ATLEAST (5,10,0) |
163 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
328 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
164 | #else |
329 | #else |
165 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
330 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
166 | #endif |
331 | #endif |
167 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
332 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
168 | --AvFILLp (padlist); |
333 | --AvFILLp (padlist); |
169 | |
334 | |
170 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
335 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
171 | av_store (newpadlist, 1, (SV *)newpad); |
336 | av_store (newpadlist, 1, (SV *)newpad); |
172 | |
337 | |
173 | return newpadlist; |
338 | return newpadlist; |
174 | } |
339 | } |
175 | |
340 | |
176 | static void |
341 | static void |
177 | free_padlist (AV *padlist) |
342 | free_padlist (pTHX_ AV *padlist) |
178 | { |
343 | { |
179 | /* may be during global destruction */ |
344 | /* may be during global destruction */ |
180 | if (SvREFCNT (padlist)) |
345 | if (SvREFCNT (padlist)) |
181 | { |
346 | { |
182 | I32 i = AvFILLp (padlist); |
347 | I32 i = AvFILLp (padlist); |
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203 | AV *padlist; |
368 | AV *padlist; |
204 | AV *av = (AV *)mg->mg_obj; |
369 | AV *av = (AV *)mg->mg_obj; |
205 | |
370 | |
206 | /* casting is fun. */ |
371 | /* casting is fun. */ |
207 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
372 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
208 | free_padlist (padlist); |
373 | free_padlist (aTHX_ padlist); |
209 | |
374 | |
210 | SvREFCNT_dec (av); |
375 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
211 | |
376 | |
212 | return 0; |
377 | return 0; |
213 | } |
378 | } |
214 | |
379 | |
215 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
380 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
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381 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
216 | |
382 | |
217 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
383 | static MGVTBL coro_cv_vtbl = { |
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384 | 0, 0, 0, 0, |
|
|
385 | coro_cv_free |
|
|
386 | }; |
218 | |
387 | |
219 | #define CORO_MAGIC(cv) \ |
388 | #define CORO_MAGIC(sv, type) \ |
220 | SvMAGIC (cv) \ |
389 | SvMAGIC (sv) \ |
221 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
390 | ? SvMAGIC (sv)->mg_type == type \ |
222 | ? SvMAGIC (cv) \ |
391 | ? SvMAGIC (sv) \ |
223 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
392 | : mg_find (sv, type) \ |
224 | : 0 |
393 | : 0 |
|
|
394 | |
|
|
395 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
396 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
397 | |
|
|
398 | static struct coro * |
|
|
399 | SvSTATE_ (pTHX_ SV *coro) |
|
|
400 | { |
|
|
401 | HV *stash; |
|
|
402 | MAGIC *mg; |
|
|
403 | |
|
|
404 | if (SvROK (coro)) |
|
|
405 | coro = SvRV (coro); |
|
|
406 | |
|
|
407 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
408 | croak ("Coro::State object required"); |
|
|
409 | |
|
|
410 | stash = SvSTASH (coro); |
|
|
411 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
412 | { |
|
|
413 | /* very slow, but rare, check */ |
|
|
414 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
415 | croak ("Coro::State object required"); |
|
|
416 | } |
|
|
417 | |
|
|
418 | mg = CORO_MAGIC_state (coro); |
|
|
419 | return (struct coro *)mg->mg_ptr; |
|
|
420 | } |
|
|
421 | |
|
|
422 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
225 | |
423 | |
226 | /* the next two functions merely cache the padlists */ |
424 | /* the next two functions merely cache the padlists */ |
227 | static void |
425 | static void |
228 | get_padlist (CV *cv) |
426 | get_padlist (pTHX_ CV *cv) |
229 | { |
427 | { |
230 | MAGIC *mg = CORO_MAGIC (cv); |
428 | MAGIC *mg = CORO_MAGIC_cv (cv); |
231 | AV *av; |
429 | AV *av; |
232 | |
430 | |
233 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
431 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
234 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
432 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
235 | else |
433 | else |
236 | { |
434 | { |
237 | #if 0 |
435 | #if CORO_PREFER_PERL_FUNCTIONS |
238 | /* this is probably cleaner, but also slower? */ |
436 | /* this is probably cleaner? but also slower! */ |
|
|
437 | /* in practise, it seems to be less stable */ |
239 | CV *cp = Perl_cv_clone (cv); |
438 | CV *cp = Perl_cv_clone (cv); |
240 | CvPADLIST (cv) = CvPADLIST (cp); |
439 | CvPADLIST (cv) = CvPADLIST (cp); |
241 | CvPADLIST (cp) = 0; |
440 | CvPADLIST (cp) = 0; |
242 | SvREFCNT_dec (cp); |
441 | SvREFCNT_dec (cp); |
243 | #else |
442 | #else |
244 | CvPADLIST (cv) = coro_clone_padlist (cv); |
443 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
245 | #endif |
444 | #endif |
246 | } |
445 | } |
247 | } |
446 | } |
248 | |
447 | |
249 | static void |
448 | static void |
250 | put_padlist (CV *cv) |
449 | put_padlist (pTHX_ CV *cv) |
251 | { |
450 | { |
252 | MAGIC *mg = CORO_MAGIC (cv); |
451 | MAGIC *mg = CORO_MAGIC_cv (cv); |
253 | AV *av; |
452 | AV *av; |
254 | |
453 | |
255 | if (!mg) |
454 | if (expect_false (!mg)) |
256 | { |
455 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
257 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
258 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
259 | mg->mg_virtual = &vtbl_coro; |
|
|
260 | mg->mg_obj = (SV *)newAV (); |
|
|
261 | } |
|
|
262 | |
456 | |
263 | av = (AV *)mg->mg_obj; |
457 | av = (AV *)mg->mg_obj; |
264 | |
458 | |
265 | if (AvFILLp (av) >= AvMAX (av)) |
459 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
266 | av_extend (av, AvMAX (av) + 1); |
460 | av_extend (av, AvMAX (av) + 1); |
267 | |
461 | |
268 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
462 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
269 | } |
463 | } |
270 | |
464 | |
271 | #define SB do { |
465 | /** load & save, init *******************************************************/ |
272 | #define SE } while (0) |
|
|
273 | |
|
|
274 | #define LOAD(state) load_state((state)); |
|
|
275 | #define SAVE(state,flags) save_state((state),(flags)); |
|
|
276 | |
|
|
277 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
|
|
278 | |
466 | |
279 | static void |
467 | static void |
280 | load_state(Coro__State c) |
468 | load_perl (pTHX_ Coro__State c) |
281 | { |
469 | { |
|
|
470 | perl_slots *slot = c->slot; |
|
|
471 | c->slot = 0; |
|
|
472 | |
|
|
473 | PL_mainstack = c->mainstack; |
|
|
474 | |
|
|
475 | GvSV (PL_defgv) = slot->defsv; |
|
|
476 | GvAV (PL_defgv) = slot->defav; |
|
|
477 | GvSV (PL_errgv) = slot->errsv; |
|
|
478 | GvSV (irsgv) = slot->irsgv; |
|
|
479 | |
282 | #define VAR(name,type) PL_ ## name = c->name; |
480 | #define VAR(name,type) PL_ ## name = slot->name; |
283 | # include "state.h" |
481 | # include "state.h" |
284 | #undef VAR |
482 | #undef VAR |
285 | |
|
|
286 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
287 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
288 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
289 | |
483 | |
290 | { |
484 | { |
291 | dSP; |
485 | dSP; |
|
|
486 | |
292 | CV *cv; |
487 | CV *cv; |
293 | |
488 | |
294 | /* now do the ugly restore mess */ |
489 | /* now do the ugly restore mess */ |
295 | while ((cv = (CV *)POPs)) |
490 | while (expect_true (cv = (CV *)POPs)) |
296 | { |
491 | { |
297 | put_padlist (cv); /* mark this padlist as available */ |
492 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
298 | CvDEPTH (cv) = PTR2IV (POPs); |
493 | CvDEPTH (cv) = PTR2IV (POPs); |
299 | CvPADLIST (cv) = (AV *)POPs; |
494 | CvPADLIST (cv) = (AV *)POPs; |
300 | } |
495 | } |
301 | |
496 | |
302 | PUTBACK; |
497 | PUTBACK; |
303 | } |
498 | } |
304 | } |
499 | } |
305 | |
500 | |
306 | static void |
501 | static void |
307 | save_state(Coro__State c, int flags) |
502 | save_perl (pTHX_ Coro__State c) |
308 | { |
503 | { |
309 | { |
504 | { |
310 | dSP; |
505 | dSP; |
311 | I32 cxix = cxstack_ix; |
506 | I32 cxix = cxstack_ix; |
312 | PERL_CONTEXT *ccstk = cxstack; |
507 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
315 | /* |
510 | /* |
316 | * the worst thing you can imagine happens first - we have to save |
511 | * the worst thing you can imagine happens first - we have to save |
317 | * (and reinitialize) all cv's in the whole callchain :( |
512 | * (and reinitialize) all cv's in the whole callchain :( |
318 | */ |
513 | */ |
319 | |
514 | |
320 | PUSHs (Nullsv); |
515 | XPUSHs (Nullsv); |
321 | /* this loop was inspired by pp_caller */ |
516 | /* this loop was inspired by pp_caller */ |
322 | for (;;) |
517 | for (;;) |
323 | { |
518 | { |
324 | while (cxix >= 0) |
519 | while (expect_true (cxix >= 0)) |
325 | { |
520 | { |
326 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
521 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
327 | |
522 | |
328 | if (CxTYPE(cx) == CXt_SUB) |
523 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
329 | { |
524 | { |
330 | CV *cv = cx->blk_sub.cv; |
525 | CV *cv = cx->blk_sub.cv; |
331 | |
526 | |
332 | if (CvDEPTH (cv)) |
527 | if (expect_true (CvDEPTH (cv))) |
333 | { |
528 | { |
334 | EXTEND (SP, 3); |
529 | EXTEND (SP, 3); |
335 | |
|
|
336 | PUSHs ((SV *)CvPADLIST(cv)); |
530 | PUSHs ((SV *)CvPADLIST (cv)); |
337 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
531 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
338 | PUSHs ((SV *)cv); |
532 | PUSHs ((SV *)cv); |
339 | |
533 | |
340 | CvDEPTH (cv) = 0; |
534 | CvDEPTH (cv) = 0; |
341 | get_padlist (cv); |
535 | get_padlist (aTHX_ cv); |
342 | } |
536 | } |
343 | } |
537 | } |
344 | #ifdef CXt_FORMAT |
|
|
345 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
346 | { |
|
|
347 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
348 | /* my bold guess is as a simple, plain sub... */ |
|
|
349 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
350 | } |
|
|
351 | #endif |
|
|
352 | } |
538 | } |
353 | |
539 | |
354 | if (top_si->si_type == PERLSI_MAIN) |
540 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
355 | break; |
541 | break; |
356 | |
542 | |
357 | top_si = top_si->si_prev; |
543 | top_si = top_si->si_prev; |
358 | ccstk = top_si->si_cxstack; |
544 | ccstk = top_si->si_cxstack; |
359 | cxix = top_si->si_cxix; |
545 | cxix = top_si->si_cxix; |
360 | } |
546 | } |
361 | |
547 | |
362 | PUTBACK; |
548 | PUTBACK; |
363 | } |
549 | } |
364 | |
550 | |
365 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
551 | /* allocate some space on the context stack for our purposes */ |
366 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
552 | /* we manually unroll here, as usually 2 slots is enough */ |
367 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
553 | if (SLOT_COUNT >= 1) CXINC; |
|
|
554 | if (SLOT_COUNT >= 2) CXINC; |
|
|
555 | if (SLOT_COUNT >= 3) CXINC; |
|
|
556 | { |
|
|
557 | int i; |
|
|
558 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
559 | CXINC; |
|
|
560 | } |
|
|
561 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
368 | |
562 | |
|
|
563 | c->mainstack = PL_mainstack; |
|
|
564 | |
|
|
565 | { |
|
|
566 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
567 | |
|
|
568 | slot->defav = GvAV (PL_defgv); |
|
|
569 | slot->defsv = DEFSV; |
|
|
570 | slot->errsv = ERRSV; |
|
|
571 | slot->irsgv = GvSV (irsgv); |
|
|
572 | |
369 | #define VAR(name,type)c->name = PL_ ## name; |
573 | #define VAR(name,type) slot->name = PL_ ## name; |
370 | # include "state.h" |
574 | # include "state.h" |
371 | #undef VAR |
575 | #undef VAR |
|
|
576 | } |
372 | } |
577 | } |
373 | |
578 | |
374 | /* |
579 | /* |
375 | * allocate various perl stacks. This is an exact copy |
580 | * allocate various perl stacks. This is an exact copy |
376 | * of perl.c:init_stacks, except that it uses less memory |
581 | * of perl.c:init_stacks, except that it uses less memory |
377 | * on the (sometimes correct) assumption that coroutines do |
582 | * on the (sometimes correct) assumption that coroutines do |
378 | * not usually need a lot of stackspace. |
583 | * not usually need a lot of stackspace. |
379 | */ |
584 | */ |
|
|
585 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
586 | # define coro_init_stacks init_stacks |
|
|
587 | #else |
380 | static void |
588 | static void |
381 | coro_init_stacks () |
589 | coro_init_stacks (pTHX) |
382 | { |
590 | { |
383 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
591 | PL_curstackinfo = new_stackinfo(32, 8); |
384 | PL_curstackinfo->si_type = PERLSI_MAIN; |
592 | PL_curstackinfo->si_type = PERLSI_MAIN; |
385 | PL_curstack = PL_curstackinfo->si_stack; |
593 | PL_curstack = PL_curstackinfo->si_stack; |
386 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
594 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
387 | |
595 | |
388 | PL_stack_base = AvARRAY(PL_curstack); |
596 | PL_stack_base = AvARRAY(PL_curstack); |
389 | PL_stack_sp = PL_stack_base; |
597 | PL_stack_sp = PL_stack_base; |
390 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
598 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
391 | |
599 | |
392 | New(50,PL_tmps_stack,96,SV*); |
600 | New(50,PL_tmps_stack,32,SV*); |
393 | PL_tmps_floor = -1; |
601 | PL_tmps_floor = -1; |
394 | PL_tmps_ix = -1; |
602 | PL_tmps_ix = -1; |
395 | PL_tmps_max = 96; |
603 | PL_tmps_max = 32; |
396 | |
604 | |
397 | New(54,PL_markstack,16,I32); |
605 | New(54,PL_markstack,16,I32); |
398 | PL_markstack_ptr = PL_markstack; |
606 | PL_markstack_ptr = PL_markstack; |
399 | PL_markstack_max = PL_markstack + 16; |
607 | PL_markstack_max = PL_markstack + 16; |
400 | |
608 | |
401 | #ifdef SET_MARK_OFFSET |
609 | #ifdef SET_MARK_OFFSET |
402 | SET_MARK_OFFSET; |
610 | SET_MARK_OFFSET; |
403 | #endif |
611 | #endif |
404 | |
612 | |
405 | New(54,PL_scopestack,16,I32); |
613 | New(54,PL_scopestack,8,I32); |
406 | PL_scopestack_ix = 0; |
614 | PL_scopestack_ix = 0; |
407 | PL_scopestack_max = 16; |
615 | PL_scopestack_max = 8; |
408 | |
616 | |
409 | New(54,PL_savestack,96,ANY); |
617 | New(54,PL_savestack,24,ANY); |
410 | PL_savestack_ix = 0; |
618 | PL_savestack_ix = 0; |
411 | PL_savestack_max = 96; |
619 | PL_savestack_max = 24; |
412 | |
620 | |
413 | #if !PERL_VERSION_ATLEAST (5,9,0) |
621 | #if !PERL_VERSION_ATLEAST (5,10,0) |
414 | New(54,PL_retstack,8,OP*); |
622 | New(54,PL_retstack,4,OP*); |
415 | PL_retstack_ix = 0; |
623 | PL_retstack_ix = 0; |
416 | PL_retstack_max = 8; |
624 | PL_retstack_max = 4; |
417 | #endif |
625 | #endif |
418 | } |
626 | } |
|
|
627 | #endif |
419 | |
628 | |
420 | /* |
629 | /* |
421 | * destroy the stacks, the callchain etc... |
630 | * destroy the stacks, the callchain etc... |
422 | */ |
631 | */ |
423 | static void |
632 | static void |
424 | coro_destroy_stacks () |
633 | coro_destruct_stacks (pTHX) |
425 | { |
634 | { |
426 | if (!IN_DESTRUCT) |
|
|
427 | { |
|
|
428 | /* is this ugly, I ask? */ |
|
|
429 | LEAVE_SCOPE (0); |
|
|
430 | |
|
|
431 | /* sure it is, but more important: is it correct?? :/ */ |
|
|
432 | FREETMPS; |
|
|
433 | |
|
|
434 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
435 | } |
|
|
436 | |
|
|
437 | while (PL_curstackinfo->si_next) |
635 | while (PL_curstackinfo->si_next) |
438 | PL_curstackinfo = PL_curstackinfo->si_next; |
636 | PL_curstackinfo = PL_curstackinfo->si_next; |
439 | |
637 | |
440 | while (PL_curstackinfo) |
638 | while (PL_curstackinfo) |
441 | { |
639 | { |
442 | PERL_SI *p = PL_curstackinfo->si_prev; |
640 | PERL_SI *p = PL_curstackinfo->si_prev; |
443 | |
641 | |
444 | { /*D*//*remove*/ |
|
|
445 | dSP; |
|
|
446 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
447 | PUTBACK; /* possibly superfluous */ |
|
|
448 | } |
|
|
449 | |
|
|
450 | if (!IN_DESTRUCT) |
642 | if (!IN_DESTRUCT) |
451 | { |
|
|
452 | dounwind (-1);/*D*//*remove*/ |
|
|
453 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
643 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
454 | } |
|
|
455 | |
644 | |
456 | Safefree (PL_curstackinfo->si_cxstack); |
645 | Safefree (PL_curstackinfo->si_cxstack); |
457 | Safefree (PL_curstackinfo); |
646 | Safefree (PL_curstackinfo); |
458 | PL_curstackinfo = p; |
647 | PL_curstackinfo = p; |
459 | } |
648 | } |
460 | |
649 | |
461 | Safefree (PL_tmps_stack); |
650 | Safefree (PL_tmps_stack); |
462 | Safefree (PL_markstack); |
651 | Safefree (PL_markstack); |
463 | Safefree (PL_scopestack); |
652 | Safefree (PL_scopestack); |
464 | Safefree (PL_savestack); |
653 | Safefree (PL_savestack); |
465 | #if !PERL_VERSION_ATLEAST (5,9,0) |
654 | #if !PERL_VERSION_ATLEAST (5,10,0) |
466 | Safefree (PL_retstack); |
655 | Safefree (PL_retstack); |
467 | #endif |
656 | #endif |
468 | } |
657 | } |
469 | |
658 | |
|
|
659 | static size_t |
|
|
660 | coro_rss (pTHX_ struct coro *coro) |
|
|
661 | { |
|
|
662 | size_t rss = sizeof (*coro); |
|
|
663 | |
|
|
664 | if (coro->mainstack) |
|
|
665 | { |
|
|
666 | perl_slots tmp_slot; |
|
|
667 | perl_slots *slot; |
|
|
668 | |
|
|
669 | if (coro->flags & CF_RUNNING) |
|
|
670 | { |
|
|
671 | slot = &tmp_slot; |
|
|
672 | |
|
|
673 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
674 | # include "state.h" |
|
|
675 | #undef VAR |
|
|
676 | } |
|
|
677 | else |
|
|
678 | slot = coro->slot; |
|
|
679 | |
|
|
680 | if (slot) |
|
|
681 | { |
|
|
682 | rss += sizeof (slot->curstackinfo); |
|
|
683 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
684 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
685 | rss += slot->tmps_max * sizeof (SV *); |
|
|
686 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
687 | rss += slot->scopestack_max * sizeof (I32); |
|
|
688 | rss += slot->savestack_max * sizeof (ANY); |
|
|
689 | |
|
|
690 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
691 | rss += slot->retstack_max * sizeof (OP *); |
|
|
692 | #endif |
|
|
693 | } |
|
|
694 | } |
|
|
695 | |
|
|
696 | return rss; |
|
|
697 | } |
|
|
698 | |
|
|
699 | /** coroutine stack handling ************************************************/ |
|
|
700 | |
|
|
701 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
702 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
703 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
704 | |
|
|
705 | /* apparently < 5.8.8 */ |
|
|
706 | #ifndef MgPV_nolen_const |
|
|
707 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
708 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
709 | (const char*)(mg)->mg_ptr) |
|
|
710 | #endif |
|
|
711 | |
|
|
712 | /* |
|
|
713 | * This overrides the default magic get method of %SIG elements. |
|
|
714 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
715 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
716 | * readback here. |
|
|
717 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
718 | * not expecting this to actually change the hook. This is a potential problem |
|
|
719 | * when a schedule happens then, but we ignore this. |
|
|
720 | */ |
|
|
721 | static int |
|
|
722 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
723 | { |
|
|
724 | const char *s = MgPV_nolen_const (mg); |
|
|
725 | |
|
|
726 | if (*s == '_') |
|
|
727 | { |
|
|
728 | SV **svp = 0; |
|
|
729 | |
|
|
730 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
731 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
732 | |
|
|
733 | if (svp) |
|
|
734 | { |
|
|
735 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
736 | return 0; |
|
|
737 | } |
|
|
738 | } |
|
|
739 | |
|
|
740 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
741 | } |
|
|
742 | |
|
|
743 | static int |
|
|
744 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
745 | { |
|
|
746 | const char *s = MgPV_nolen_const (mg); |
|
|
747 | |
|
|
748 | if (*s == '_') |
|
|
749 | { |
|
|
750 | SV **svp = 0; |
|
|
751 | |
|
|
752 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
753 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
754 | |
|
|
755 | if (svp) |
|
|
756 | { |
|
|
757 | SV *old = *svp; |
|
|
758 | *svp = 0; |
|
|
759 | SvREFCNT_dec (old); |
|
|
760 | return 0; |
|
|
761 | } |
|
|
762 | } |
|
|
763 | |
|
|
764 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
765 | } |
|
|
766 | |
|
|
767 | static int |
|
|
768 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
769 | { |
|
|
770 | const char *s = MgPV_nolen_const (mg); |
|
|
771 | |
|
|
772 | if (*s == '_') |
|
|
773 | { |
|
|
774 | SV **svp = 0; |
|
|
775 | |
|
|
776 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
777 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
778 | |
|
|
779 | if (svp) |
|
|
780 | { |
|
|
781 | SV *old = *svp; |
|
|
782 | *svp = newSVsv (sv); |
|
|
783 | SvREFCNT_dec (old); |
|
|
784 | return 0; |
|
|
785 | } |
|
|
786 | } |
|
|
787 | |
|
|
788 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
789 | } |
|
|
790 | |
470 | static void |
791 | static void |
471 | setup_coro (struct coro *coro) |
792 | coro_setup (pTHX_ struct coro *coro) |
472 | { |
793 | { |
473 | /* |
794 | /* |
474 | * emulate part of the perl startup here. |
795 | * emulate part of the perl startup here. |
475 | */ |
796 | */ |
476 | |
|
|
477 | coro_init_stacks (); |
797 | coro_init_stacks (aTHX); |
478 | |
798 | |
|
|
799 | PL_runops = RUNOPS_DEFAULT; |
|
|
800 | PL_curcop = &PL_compiling; |
|
|
801 | PL_in_eval = EVAL_NULL; |
479 | PL_curcop = 0; |
802 | PL_comppad = 0; |
480 | PL_in_eval = 0; |
|
|
481 | PL_curpm = 0; |
803 | PL_curpm = 0; |
|
|
804 | PL_curpad = 0; |
|
|
805 | PL_localizing = 0; |
|
|
806 | PL_dirty = 0; |
|
|
807 | PL_restartop = 0; |
|
|
808 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
809 | PL_parser = 0; |
|
|
810 | #endif |
|
|
811 | |
|
|
812 | /* recreate the die/warn hooks */ |
|
|
813 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
814 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
|
|
815 | |
|
|
816 | GvSV (PL_defgv) = newSV (0); |
|
|
817 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
818 | GvSV (PL_errgv) = newSV (0); |
|
|
819 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
820 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
821 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
482 | |
822 | |
483 | { |
823 | { |
484 | dSP; |
824 | dSP; |
485 | LOGOP myop; |
825 | LOGOP myop; |
486 | |
826 | |
487 | /* I have no idea why this is needed, but it is */ |
|
|
488 | PUSHMARK (SP); |
|
|
489 | |
|
|
490 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
491 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
492 | |
|
|
493 | Zero (&myop, 1, LOGOP); |
827 | Zero (&myop, 1, LOGOP); |
494 | myop.op_next = Nullop; |
828 | myop.op_next = Nullop; |
495 | myop.op_flags = OPf_WANT_VOID; |
829 | myop.op_flags = OPf_WANT_VOID; |
496 | |
830 | |
|
|
831 | PUSHMARK (SP); |
|
|
832 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
|
|
833 | PUTBACK; |
497 | PL_op = (OP *)&myop; |
834 | PL_op = (OP *)&myop; |
498 | |
|
|
499 | PUSHMARK (SP); |
|
|
500 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
|
|
501 | PUTBACK; |
|
|
502 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
835 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
503 | SPAGAIN; |
836 | SPAGAIN; |
504 | |
|
|
505 | ENTER; /* necessary e.g. for dounwind */ |
|
|
506 | } |
837 | } |
|
|
838 | |
|
|
839 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
840 | * likely was suspended in set_stacklevel, called from entersub. |
|
|
841 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
842 | * so we ENTER here for symmetry |
|
|
843 | */ |
|
|
844 | ENTER; |
507 | } |
845 | } |
508 | |
846 | |
509 | static void |
847 | static void |
|
|
848 | coro_destruct (pTHX_ struct coro *coro) |
|
|
849 | { |
|
|
850 | if (!IN_DESTRUCT) |
|
|
851 | { |
|
|
852 | /* restore all saved variables and stuff */ |
|
|
853 | LEAVE_SCOPE (0); |
|
|
854 | assert (PL_tmps_floor == -1); |
|
|
855 | |
|
|
856 | /* free all temporaries */ |
|
|
857 | FREETMPS; |
|
|
858 | assert (PL_tmps_ix == -1); |
|
|
859 | |
|
|
860 | /* unwind all extra stacks */ |
|
|
861 | POPSTACK_TO (PL_mainstack); |
|
|
862 | |
|
|
863 | /* unwind main stack */ |
|
|
864 | dounwind (-1); |
|
|
865 | } |
|
|
866 | |
|
|
867 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
868 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
869 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
870 | SvREFCNT_dec (PL_defoutgv); |
|
|
871 | SvREFCNT_dec (PL_rs); |
|
|
872 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
873 | |
|
|
874 | SvREFCNT_dec (PL_diehook); |
|
|
875 | SvREFCNT_dec (PL_warnhook); |
|
|
876 | |
|
|
877 | SvREFCNT_dec (coro->saved_deffh); |
|
|
878 | SvREFCNT_dec (coro->throw); |
|
|
879 | |
|
|
880 | coro_destruct_stacks (aTHX); |
|
|
881 | } |
|
|
882 | |
|
|
883 | static void |
510 | free_coro_mortal () |
884 | free_coro_mortal (pTHX) |
511 | { |
885 | { |
512 | if (coro_mortal) |
886 | if (expect_true (coro_mortal)) |
513 | { |
887 | { |
514 | SvREFCNT_dec (coro_mortal); |
888 | SvREFCNT_dec (coro_mortal); |
515 | coro_mortal = 0; |
889 | coro_mortal = 0; |
516 | } |
890 | } |
517 | } |
891 | } |
518 | |
892 | |
|
|
893 | static int |
|
|
894 | runops_trace (pTHX) |
|
|
895 | { |
|
|
896 | COP *oldcop = 0; |
|
|
897 | int oldcxix = -2; |
|
|
898 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
899 | coro_cctx *cctx = coro->cctx; |
|
|
900 | |
|
|
901 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
902 | { |
|
|
903 | PERL_ASYNC_CHECK (); |
|
|
904 | |
|
|
905 | if (cctx->flags & CC_TRACE_ALL) |
|
|
906 | { |
|
|
907 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
908 | { |
|
|
909 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
910 | SV **bot, **top; |
|
|
911 | AV *av = newAV (); /* return values */ |
|
|
912 | SV **cb; |
|
|
913 | dSP; |
|
|
914 | |
|
|
915 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
916 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
917 | if (isGV (gv)) |
|
|
918 | gv_efullname3 (fullname, gv, 0); |
|
|
919 | |
|
|
920 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
921 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
922 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
923 | : bot; |
|
|
924 | |
|
|
925 | av_extend (av, top - bot); |
|
|
926 | while (bot < top) |
|
|
927 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
928 | |
|
|
929 | PL_runops = RUNOPS_DEFAULT; |
|
|
930 | ENTER; |
|
|
931 | SAVETMPS; |
|
|
932 | EXTEND (SP, 3); |
|
|
933 | PUSHMARK (SP); |
|
|
934 | PUSHs (&PL_sv_no); |
|
|
935 | PUSHs (fullname); |
|
|
936 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
937 | PUTBACK; |
|
|
938 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
939 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
940 | SPAGAIN; |
|
|
941 | FREETMPS; |
|
|
942 | LEAVE; |
|
|
943 | PL_runops = runops_trace; |
|
|
944 | } |
|
|
945 | |
|
|
946 | if (oldcop != PL_curcop) |
|
|
947 | { |
|
|
948 | oldcop = PL_curcop; |
|
|
949 | |
|
|
950 | if (PL_curcop != &PL_compiling) |
|
|
951 | { |
|
|
952 | SV **cb; |
|
|
953 | |
|
|
954 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
955 | { |
|
|
956 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
957 | |
|
|
958 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
959 | { |
|
|
960 | runops_proc_t old_runops = PL_runops; |
|
|
961 | dSP; |
|
|
962 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
963 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
964 | |
|
|
965 | if (isGV (gv)) |
|
|
966 | gv_efullname3 (fullname, gv, 0); |
|
|
967 | |
|
|
968 | PL_runops = RUNOPS_DEFAULT; |
|
|
969 | ENTER; |
|
|
970 | SAVETMPS; |
|
|
971 | EXTEND (SP, 3); |
|
|
972 | PUSHMARK (SP); |
|
|
973 | PUSHs (&PL_sv_yes); |
|
|
974 | PUSHs (fullname); |
|
|
975 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
976 | PUTBACK; |
|
|
977 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
978 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
979 | SPAGAIN; |
|
|
980 | FREETMPS; |
|
|
981 | LEAVE; |
|
|
982 | PL_runops = runops_trace; |
|
|
983 | } |
|
|
984 | |
|
|
985 | oldcxix = cxstack_ix; |
|
|
986 | } |
|
|
987 | |
|
|
988 | if (cctx->flags & CC_TRACE_LINE) |
|
|
989 | { |
|
|
990 | dSP; |
|
|
991 | |
|
|
992 | PL_runops = RUNOPS_DEFAULT; |
|
|
993 | ENTER; |
|
|
994 | SAVETMPS; |
|
|
995 | EXTEND (SP, 3); |
|
|
996 | PL_runops = RUNOPS_DEFAULT; |
|
|
997 | PUSHMARK (SP); |
|
|
998 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
999 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1000 | PUTBACK; |
|
|
1001 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1002 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1003 | SPAGAIN; |
|
|
1004 | FREETMPS; |
|
|
1005 | LEAVE; |
|
|
1006 | PL_runops = runops_trace; |
|
|
1007 | } |
|
|
1008 | } |
|
|
1009 | } |
|
|
1010 | } |
|
|
1011 | } |
|
|
1012 | |
|
|
1013 | TAINT_NOT; |
|
|
1014 | return 0; |
|
|
1015 | } |
|
|
1016 | |
|
|
1017 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
1018 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
1019 | /* during execution of a perl program */ |
519 | static void NOINLINE |
1020 | static void NOINLINE |
520 | prepare_cctx (coro_cctx *cctx) |
1021 | cctx_prepare (pTHX_ coro_cctx *cctx) |
521 | { |
1022 | { |
522 | dSP; |
1023 | dSP; |
523 | LOGOP myop; |
1024 | LOGOP myop; |
524 | |
1025 | |
|
|
1026 | PL_top_env = &PL_start_env; |
|
|
1027 | |
|
|
1028 | if (cctx->flags & CC_TRACE) |
|
|
1029 | PL_runops = runops_trace; |
|
|
1030 | |
525 | Zero (&myop, 1, LOGOP); |
1031 | Zero (&myop, 1, LOGOP); |
526 | myop.op_next = PL_op; |
1032 | myop.op_next = PL_op; |
527 | myop.op_flags = OPf_WANT_VOID; |
1033 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
528 | |
|
|
529 | sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx)); |
|
|
530 | |
1034 | |
531 | PUSHMARK (SP); |
1035 | PUSHMARK (SP); |
|
|
1036 | EXTEND (SP, 2); |
|
|
1037 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
532 | XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1038 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
533 | PUTBACK; |
1039 | PUTBACK; |
|
|
1040 | PL_op = (OP *)&myop; |
534 | PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX); |
1041 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
535 | SPAGAIN; |
1042 | SPAGAIN; |
536 | } |
1043 | } |
537 | |
1044 | |
|
|
1045 | /* |
|
|
1046 | * this is a _very_ stripped down perl interpreter ;) |
|
|
1047 | */ |
538 | static void |
1048 | static void |
539 | coro_run (void *arg) |
1049 | cctx_run (void *arg) |
540 | { |
1050 | { |
|
|
1051 | dTHX; |
|
|
1052 | |
541 | /* coro_run is the alternative epilogue of transfer() */ |
1053 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
542 | UNLOCK; |
1054 | UNLOCK; |
543 | |
1055 | |
|
|
1056 | /* we now skip the entersub that lead to transfer() */ |
|
|
1057 | PL_op = PL_op->op_next; |
|
|
1058 | |
|
|
1059 | /* inject a fake subroutine call to cctx_init */ |
|
|
1060 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
|
|
1061 | |
|
|
1062 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
1063 | PL_restartop = PL_op; |
|
|
1064 | perl_run (PL_curinterp); |
|
|
1065 | |
544 | /* |
1066 | /* |
545 | * this is a _very_ stripped down perl interpreter ;) |
1067 | * If perl-run returns we assume exit() was being called or the coro |
|
|
1068 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
1069 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
1070 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
1071 | * coroutine as Coro has no such concept |
546 | */ |
1072 | */ |
547 | PL_top_env = &PL_start_env; |
1073 | PL_top_env = main_top_env; |
548 | |
1074 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
549 | /* inject call to cctx_init */ |
|
|
550 | prepare_cctx ((coro_cctx *)arg); |
|
|
551 | |
|
|
552 | /* somebody will hit me for both perl_run and PL_restartop */ |
|
|
553 | perl_run (PL_curinterp); |
|
|
554 | |
|
|
555 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
|
|
556 | abort (); |
|
|
557 | } |
1075 | } |
558 | |
1076 | |
559 | static coro_cctx * |
1077 | static coro_cctx * |
560 | cctx_new () |
1078 | cctx_new () |
561 | { |
1079 | { |
562 | coro_cctx *cctx; |
1080 | coro_cctx *cctx; |
|
|
1081 | void *stack_start; |
|
|
1082 | size_t stack_size; |
563 | |
1083 | |
564 | ++cctx_count; |
1084 | ++cctx_count; |
565 | |
|
|
566 | New (0, cctx, 1, coro_cctx); |
1085 | Newz (0, cctx, 1, coro_cctx); |
567 | |
1086 | |
568 | #if HAVE_MMAP |
1087 | #if HAVE_MMAP |
569 | |
|
|
570 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
1088 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
571 | /* mmap suppsedly does allocate-on-write for us */ |
1089 | /* mmap supposedly does allocate-on-write for us */ |
572 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1090 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
573 | |
1091 | |
574 | if (cctx->sptr == (void *)-1) |
1092 | if (cctx->sptr != (void *)-1) |
575 | { |
|
|
576 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
577 | _exit (EXIT_FAILURE); |
|
|
578 | } |
1093 | { |
579 | |
|
|
580 | # if STACKGUARD |
1094 | # if CORO_STACKGUARD |
581 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
1095 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
582 | # endif |
1096 | # endif |
|
|
1097 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
1098 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
1099 | cctx->flags |= CC_MAPPED; |
|
|
1100 | } |
|
|
1101 | else |
|
|
1102 | #endif |
|
|
1103 | { |
|
|
1104 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
1105 | New (0, cctx->sptr, coro_stacksize, long); |
583 | |
1106 | |
584 | #else |
|
|
585 | |
|
|
586 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
587 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
588 | |
|
|
589 | if (!cctx->sptr) |
1107 | if (!cctx->sptr) |
590 | { |
1108 | { |
591 | perror ("FATAL: unable to malloc stack for coroutine"); |
1109 | perror ("FATAL: unable to allocate stack for coroutine"); |
592 | _exit (EXIT_FAILURE); |
1110 | _exit (EXIT_FAILURE); |
593 | } |
1111 | } |
594 | |
1112 | |
595 | #endif |
1113 | stack_start = cctx->sptr; |
|
|
1114 | stack_size = cctx->ssize; |
|
|
1115 | } |
596 | |
1116 | |
597 | #if USE_VALGRIND |
1117 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
598 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
1118 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
599 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
600 | cctx->ssize + (char *)cctx->sptr |
|
|
601 | ); |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
|
|
605 | |
1119 | |
606 | return cctx; |
1120 | return cctx; |
607 | } |
1121 | } |
608 | |
1122 | |
609 | static void |
1123 | static void |
610 | cctx_free (coro_cctx *cctx) |
1124 | cctx_destroy (coro_cctx *cctx) |
611 | { |
1125 | { |
612 | if (!cctx) |
1126 | if (!cctx) |
613 | return; |
1127 | return; |
614 | |
1128 | |
615 | --cctx_count; |
1129 | --cctx_count; |
|
|
1130 | coro_destroy (&cctx->cctx); |
616 | |
1131 | |
|
|
1132 | /* coro_transfer creates new, empty cctx's */ |
|
|
1133 | if (cctx->sptr) |
|
|
1134 | { |
617 | #if USE_VALGRIND |
1135 | #if CORO_USE_VALGRIND |
618 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1136 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
619 | #endif |
1137 | #endif |
620 | |
1138 | |
621 | #if HAVE_MMAP |
1139 | #if HAVE_MMAP |
|
|
1140 | if (cctx->flags & CC_MAPPED) |
622 | munmap (cctx->sptr, cctx->ssize); |
1141 | munmap (cctx->sptr, cctx->ssize); |
623 | #else |
1142 | else |
|
|
1143 | #endif |
624 | Safefree (cctx->sptr); |
1144 | Safefree (cctx->sptr); |
625 | #endif |
1145 | } |
626 | |
1146 | |
627 | Safefree (cctx); |
1147 | Safefree (cctx); |
628 | } |
1148 | } |
629 | |
1149 | |
|
|
1150 | /* wether this cctx should be destructed */ |
|
|
1151 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
|
|
1152 | |
630 | static coro_cctx * |
1153 | static coro_cctx * |
631 | cctx_get () |
1154 | cctx_get (pTHX) |
632 | { |
1155 | { |
633 | coro_cctx *cctx; |
1156 | while (expect_true (cctx_first)) |
634 | |
|
|
635 | if (cctx_first) |
|
|
636 | { |
1157 | { |
|
|
1158 | coro_cctx *cctx = cctx_first; |
|
|
1159 | cctx_first = cctx->next; |
637 | --cctx_idle; |
1160 | --cctx_idle; |
638 | cctx = cctx_first; |
1161 | |
639 | cctx_first = cctx->next; |
1162 | if (expect_true (!CCTX_EXPIRED (cctx))) |
640 | } |
1163 | return cctx; |
641 | else |
1164 | |
642 | { |
1165 | cctx_destroy (cctx); |
643 | cctx = cctx_new (); |
|
|
644 | PL_op = PL_op->op_next; |
|
|
645 | } |
1166 | } |
646 | |
1167 | |
647 | return cctx; |
1168 | return cctx_new (); |
648 | } |
1169 | } |
649 | |
1170 | |
650 | static void |
1171 | static void |
651 | cctx_put (coro_cctx *cctx) |
1172 | cctx_put (coro_cctx *cctx) |
652 | { |
1173 | { |
|
|
1174 | assert (("cctx_put called on non-initialised cctx", cctx->sptr)); |
|
|
1175 | |
|
|
1176 | /* free another cctx if overlimit */ |
|
|
1177 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
|
|
1178 | { |
|
|
1179 | coro_cctx *first = cctx_first; |
|
|
1180 | cctx_first = first->next; |
|
|
1181 | --cctx_idle; |
|
|
1182 | |
|
|
1183 | cctx_destroy (first); |
|
|
1184 | } |
|
|
1185 | |
653 | ++cctx_idle; |
1186 | ++cctx_idle; |
654 | cctx->next = cctx_first; |
1187 | cctx->next = cctx_first; |
655 | cctx_first = cctx; |
1188 | cctx_first = cctx; |
656 | } |
1189 | } |
657 | |
1190 | |
658 | /* never call directly, always through the coro_state_transfer global variable */ |
1191 | /** coroutine switching *****************************************************/ |
|
|
1192 | |
|
|
1193 | static void |
|
|
1194 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1195 | { |
|
|
1196 | if (expect_true (prev != next)) |
|
|
1197 | { |
|
|
1198 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1199 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
1200 | |
|
|
1201 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1202 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1203 | |
|
|
1204 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1205 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1206 | |
|
|
1207 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1208 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1209 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
|
|
1210 | #endif |
|
|
1211 | } |
|
|
1212 | } |
|
|
1213 | |
|
|
1214 | /* always use the TRANSFER macro */ |
659 | static void NOINLINE |
1215 | static void NOINLINE |
660 | transfer (struct coro *prev, struct coro *next, int flags) |
1216 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
661 | { |
1217 | { |
662 | dSTACKLEVEL; |
1218 | dSTACKLEVEL; |
663 | |
1219 | |
664 | /* sometimes transfer is only called to set idle_sp */ |
1220 | /* sometimes transfer is only called to set idle_sp */ |
665 | if (flags == TRANSFER_SET_STACKLEVEL) |
1221 | if (expect_false (!next)) |
|
|
1222 | { |
666 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1223 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
667 | else if (prev != next) |
1224 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
668 | { |
1225 | } |
|
|
1226 | else if (expect_true (prev != next)) |
|
|
1227 | { |
|
|
1228 | static volatile int has_throw; |
669 | coro_cctx *prev__cctx; |
1229 | coro_cctx *prev__cctx; |
670 | |
1230 | |
|
|
1231 | if (expect_false (prev->flags & CF_NEW)) |
|
|
1232 | { |
|
|
1233 | /* create a new empty/source context */ |
|
|
1234 | ++cctx_count; |
|
|
1235 | New (0, prev->cctx, 1, coro_cctx); |
|
|
1236 | prev->cctx->sptr = 0; |
|
|
1237 | coro_create (&prev->cctx->cctx, 0, 0, 0, 0); |
|
|
1238 | |
|
|
1239 | prev->flags &= ~CF_NEW; |
|
|
1240 | prev->flags |= CF_RUNNING; |
|
|
1241 | } |
|
|
1242 | |
|
|
1243 | prev->flags &= ~CF_RUNNING; |
|
|
1244 | next->flags |= CF_RUNNING; |
|
|
1245 | |
671 | LOCK; |
1246 | LOCK; |
672 | |
1247 | |
673 | if (next->mainstack) |
1248 | /* first get rid of the old state */ |
|
|
1249 | save_perl (aTHX_ prev); |
|
|
1250 | |
|
|
1251 | if (expect_false (next->flags & CF_NEW)) |
674 | { |
1252 | { |
675 | /* coroutine already started */ |
1253 | /* need to start coroutine */ |
676 | SAVE (prev, flags); |
1254 | next->flags &= ~CF_NEW; |
677 | LOAD (next); |
1255 | /* setup coroutine call */ |
|
|
1256 | coro_setup (aTHX_ next); |
678 | } |
1257 | } |
679 | else |
1258 | else |
|
|
1259 | load_perl (aTHX_ next); |
|
|
1260 | |
|
|
1261 | prev__cctx = prev->cctx; |
|
|
1262 | |
|
|
1263 | /* possibly "free" the cctx */ |
|
|
1264 | if (expect_true ( |
|
|
1265 | prev__cctx->idle_sp == STACKLEVEL |
|
|
1266 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1267 | && !force_cctx |
|
|
1268 | )) |
680 | { |
1269 | { |
681 | /* need to start coroutine */ |
1270 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
682 | /* first get rid of the old state */ |
1271 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
683 | SAVE (prev, -1); |
1272 | |
684 | /* setup coroutine call */ |
|
|
685 | setup_coro (next); |
|
|
686 | /* need a stack */ |
|
|
687 | next->cctx = 0; |
1273 | prev->cctx = 0; |
|
|
1274 | |
|
|
1275 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1276 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1277 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1278 | if (!next->cctx) |
|
|
1279 | next->cctx = cctx_get (aTHX); |
|
|
1280 | |
|
|
1281 | cctx_put (prev__cctx); |
688 | } |
1282 | } |
689 | |
1283 | |
690 | if (!prev->cctx) |
1284 | ++next->usecount; |
691 | /* create a new empty context */ |
|
|
692 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
693 | |
1285 | |
694 | prev__cctx = prev->cctx; |
|
|
695 | |
|
|
696 | /* possibly "free" the cctx */ |
|
|
697 | if (prev__cctx->idle_sp == STACKLEVEL) |
|
|
698 | { |
|
|
699 | cctx_put (prev__cctx); |
|
|
700 | prev->cctx = 0; |
|
|
701 | } |
|
|
702 | |
|
|
703 | if (!next->cctx) |
1286 | if (expect_true (!next->cctx)) |
704 | next->cctx = cctx_get (); |
1287 | next->cctx = cctx_get (aTHX); |
705 | |
1288 | |
|
|
1289 | has_throw = !!next->throw; |
|
|
1290 | |
706 | if (prev__cctx != next->cctx) |
1291 | if (expect_false (prev__cctx != next->cctx)) |
707 | { |
1292 | { |
708 | prev__cctx->top_env = PL_top_env; |
1293 | prev__cctx->top_env = PL_top_env; |
709 | PL_top_env = next->cctx->top_env; |
1294 | PL_top_env = next->cctx->top_env; |
710 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1295 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
711 | } |
1296 | } |
712 | |
1297 | |
713 | free_coro_mortal (); |
1298 | free_coro_mortal (aTHX); |
714 | |
|
|
715 | UNLOCK; |
1299 | UNLOCK; |
|
|
1300 | |
|
|
1301 | if (expect_false (has_throw)) |
|
|
1302 | { |
|
|
1303 | struct coro *coro = SvSTATE (coro_current); |
|
|
1304 | |
|
|
1305 | if (coro->throw) |
|
|
1306 | { |
|
|
1307 | SV *exception = coro->throw; |
|
|
1308 | coro->throw = 0; |
|
|
1309 | sv_setsv (ERRSV, exception); |
|
|
1310 | croak (0); |
|
|
1311 | } |
|
|
1312 | } |
716 | } |
1313 | } |
717 | } |
1314 | } |
718 | |
1315 | |
719 | struct transfer_args |
1316 | struct transfer_args |
720 | { |
1317 | { |
721 | struct coro *prev, *next; |
1318 | struct coro *prev, *next; |
722 | int flags; |
|
|
723 | }; |
1319 | }; |
724 | |
1320 | |
|
|
1321 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
725 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags) |
1322 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
726 | |
1323 | |
|
|
1324 | /** high level stuff ********************************************************/ |
|
|
1325 | |
727 | static void |
1326 | static int |
728 | coro_state_destroy (struct coro *coro) |
1327 | coro_state_destroy (pTHX_ struct coro *coro) |
729 | { |
1328 | { |
730 | if (coro->refcnt--) |
1329 | if (coro->flags & CF_DESTROYED) |
731 | return; |
1330 | return 0; |
|
|
1331 | |
|
|
1332 | coro->flags |= CF_DESTROYED; |
|
|
1333 | |
|
|
1334 | if (coro->flags & CF_READY) |
|
|
1335 | { |
|
|
1336 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1337 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1338 | LOCK; |
|
|
1339 | --coro_nready; |
|
|
1340 | UNLOCK; |
|
|
1341 | } |
|
|
1342 | else |
|
|
1343 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
732 | |
1344 | |
733 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1345 | if (coro->mainstack && coro->mainstack != main_mainstack) |
734 | { |
1346 | { |
735 | struct coro temp; |
1347 | struct coro temp; |
736 | |
1348 | |
737 | SAVE ((&temp), TRANSFER_SAVE_ALL); |
1349 | if (coro->flags & CF_RUNNING) |
738 | LOAD (coro); |
1350 | croak ("FATAL: tried to destroy currently running coroutine"); |
739 | |
1351 | |
740 | coro_destroy_stacks (); |
1352 | save_perl (aTHX_ &temp); |
|
|
1353 | load_perl (aTHX_ coro); |
741 | |
1354 | |
742 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1355 | coro_destruct (aTHX_ coro); |
743 | |
1356 | |
|
|
1357 | load_perl (aTHX_ &temp); |
|
|
1358 | |
744 | coro->mainstack = 0; |
1359 | coro->slot = 0; |
745 | } |
1360 | } |
746 | |
1361 | |
747 | cctx_free (coro->cctx); |
1362 | cctx_destroy (coro->cctx); |
748 | SvREFCNT_dec (coro->args); |
1363 | SvREFCNT_dec (coro->args); |
749 | Safefree (coro); |
1364 | |
|
|
1365 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1366 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1367 | if (coro == coro_first) coro_first = coro->next; |
|
|
1368 | |
|
|
1369 | return 1; |
750 | } |
1370 | } |
751 | |
1371 | |
752 | static int |
1372 | static int |
753 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
1373 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
754 | { |
1374 | { |
755 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1375 | struct coro *coro = (struct coro *)mg->mg_ptr; |
756 | mg->mg_ptr = 0; |
1376 | mg->mg_ptr = 0; |
757 | |
1377 | |
|
|
1378 | coro->hv = 0; |
|
|
1379 | |
|
|
1380 | if (--coro->refcnt < 0) |
|
|
1381 | { |
758 | coro_state_destroy (coro); |
1382 | coro_state_destroy (aTHX_ coro); |
|
|
1383 | Safefree (coro); |
|
|
1384 | } |
759 | |
1385 | |
760 | return 0; |
1386 | return 0; |
761 | } |
1387 | } |
762 | |
1388 | |
763 | static int |
1389 | static int |
… | |
… | |
770 | return 0; |
1396 | return 0; |
771 | } |
1397 | } |
772 | |
1398 | |
773 | static MGVTBL coro_state_vtbl = { |
1399 | static MGVTBL coro_state_vtbl = { |
774 | 0, 0, 0, 0, |
1400 | 0, 0, 0, 0, |
775 | coro_state_clear, |
1401 | coro_state_free, |
776 | 0, |
1402 | 0, |
777 | #ifdef MGf_DUP |
1403 | #ifdef MGf_DUP |
778 | coro_state_dup, |
1404 | coro_state_dup, |
779 | #else |
1405 | #else |
780 | # define MGf_DUP 0 |
1406 | # define MGf_DUP 0 |
781 | #endif |
1407 | #endif |
782 | }; |
1408 | }; |
783 | |
1409 | |
784 | static struct coro * |
|
|
785 | SvSTATE (SV *coro) |
|
|
786 | { |
|
|
787 | HV *stash; |
|
|
788 | MAGIC *mg; |
|
|
789 | |
|
|
790 | if (SvROK (coro)) |
|
|
791 | coro = SvRV (coro); |
|
|
792 | |
|
|
793 | stash = SvSTASH (coro); |
|
|
794 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
795 | { |
|
|
796 | /* very slow, but rare, check */ |
|
|
797 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
798 | croak ("Coro::State object required"); |
|
|
799 | } |
|
|
800 | |
|
|
801 | mg = SvMAGIC (coro); |
|
|
802 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
803 | return (struct coro *)mg->mg_ptr; |
|
|
804 | } |
|
|
805 | |
|
|
806 | static void |
1410 | static void |
807 | prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags) |
1411 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
808 | { |
1412 | { |
809 | ta->prev = SvSTATE (prev); |
1413 | ta->prev = SvSTATE (prev_sv); |
810 | ta->next = SvSTATE (next); |
1414 | ta->next = SvSTATE (next_sv); |
811 | ta->flags = flags; |
1415 | TRANSFER_CHECK (*ta); |
812 | } |
1416 | } |
813 | |
1417 | |
814 | static void |
1418 | static void |
815 | api_transfer (SV *prev, SV *next, int flags) |
1419 | api_transfer (SV *prev_sv, SV *next_sv) |
816 | { |
1420 | { |
817 | dTHX; |
1421 | dTHX; |
818 | struct transfer_args ta; |
1422 | struct transfer_args ta; |
819 | |
1423 | |
820 | prepare_transfer (&ta, prev, next, flags); |
1424 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
821 | TRANSFER (ta); |
1425 | TRANSFER (ta, 1); |
822 | } |
1426 | } |
823 | |
1427 | |
824 | /** Coro ********************************************************************/ |
1428 | /** Coro ********************************************************************/ |
825 | |
1429 | |
826 | #define PRIO_MAX 3 |
|
|
827 | #define PRIO_HIGH 1 |
|
|
828 | #define PRIO_NORMAL 0 |
|
|
829 | #define PRIO_LOW -1 |
|
|
830 | #define PRIO_IDLE -3 |
|
|
831 | #define PRIO_MIN -4 |
|
|
832 | |
|
|
833 | /* for Coro.pm */ |
|
|
834 | static GV *coro_current, *coro_idle; |
|
|
835 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
836 | static int coro_nready; |
|
|
837 | |
|
|
838 | static void |
1430 | static void |
839 | coro_enq (SV *sv) |
1431 | coro_enq (pTHX_ SV *coro_sv) |
|
|
1432 | { |
|
|
1433 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
1434 | } |
|
|
1435 | |
|
|
1436 | static SV * |
|
|
1437 | coro_deq (pTHX) |
840 | { |
1438 | { |
841 | int prio; |
1439 | int prio; |
842 | |
1440 | |
843 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
844 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
845 | |
|
|
846 | prio = SvSTATE (sv)->prio; |
|
|
847 | |
|
|
848 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
849 | coro_nready++; |
|
|
850 | } |
|
|
851 | |
|
|
852 | static SV * |
|
|
853 | coro_deq (int min_prio) |
|
|
854 | { |
|
|
855 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
856 | |
|
|
857 | min_prio -= PRIO_MIN; |
|
|
858 | if (min_prio < 0) |
|
|
859 | min_prio = 0; |
|
|
860 | |
|
|
861 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1441 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
862 | if (AvFILLp (coro_ready [prio]) >= 0) |
1442 | if (AvFILLp (coro_ready [prio]) >= 0) |
863 | { |
|
|
864 | coro_nready--; |
|
|
865 | return av_shift (coro_ready [prio]); |
1443 | return av_shift (coro_ready [prio]); |
866 | } |
|
|
867 | |
1444 | |
868 | return 0; |
1445 | return 0; |
869 | } |
1446 | } |
870 | |
1447 | |
|
|
1448 | static int |
|
|
1449 | api_ready (SV *coro_sv) |
|
|
1450 | { |
|
|
1451 | dTHX; |
|
|
1452 | struct coro *coro; |
|
|
1453 | SV *sv_hook; |
|
|
1454 | void (*xs_hook)(void); |
|
|
1455 | |
|
|
1456 | if (SvROK (coro_sv)) |
|
|
1457 | coro_sv = SvRV (coro_sv); |
|
|
1458 | |
|
|
1459 | coro = SvSTATE (coro_sv); |
|
|
1460 | |
|
|
1461 | if (coro->flags & CF_READY) |
|
|
1462 | return 0; |
|
|
1463 | |
|
|
1464 | coro->flags |= CF_READY; |
|
|
1465 | |
|
|
1466 | LOCK; |
|
|
1467 | |
|
|
1468 | sv_hook = coro_nready ? 0 : coro_readyhook; |
|
|
1469 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1470 | |
|
|
1471 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
|
|
1472 | ++coro_nready; |
|
|
1473 | |
|
|
1474 | UNLOCK; |
|
|
1475 | |
|
|
1476 | if (sv_hook) |
|
|
1477 | { |
|
|
1478 | dSP; |
|
|
1479 | |
|
|
1480 | ENTER; |
|
|
1481 | SAVETMPS; |
|
|
1482 | |
|
|
1483 | PUSHMARK (SP); |
|
|
1484 | PUTBACK; |
|
|
1485 | call_sv (sv_hook, G_DISCARD); |
|
|
1486 | SPAGAIN; |
|
|
1487 | |
|
|
1488 | FREETMPS; |
|
|
1489 | LEAVE; |
|
|
1490 | } |
|
|
1491 | |
|
|
1492 | if (xs_hook) |
|
|
1493 | xs_hook (); |
|
|
1494 | |
|
|
1495 | return 1; |
|
|
1496 | } |
|
|
1497 | |
|
|
1498 | static int |
|
|
1499 | api_is_ready (SV *coro_sv) |
|
|
1500 | { |
|
|
1501 | dTHX; |
|
|
1502 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1503 | } |
|
|
1504 | |
871 | static void |
1505 | static void |
872 | api_ready (SV *coro) |
1506 | prepare_schedule (pTHX_ struct transfer_args *ta) |
873 | { |
1507 | { |
874 | dTHX; |
1508 | SV *prev_sv, *next_sv; |
875 | |
1509 | |
876 | if (SvROK (coro)) |
1510 | for (;;) |
877 | coro = SvRV (coro); |
1511 | { |
|
|
1512 | LOCK; |
|
|
1513 | next_sv = coro_deq (aTHX); |
|
|
1514 | |
|
|
1515 | /* nothing to schedule: call the idle handler */ |
|
|
1516 | if (expect_false (!next_sv)) |
|
|
1517 | { |
|
|
1518 | dSP; |
|
|
1519 | UNLOCK; |
|
|
1520 | |
|
|
1521 | ENTER; |
|
|
1522 | SAVETMPS; |
|
|
1523 | |
|
|
1524 | PUSHMARK (SP); |
|
|
1525 | PUTBACK; |
|
|
1526 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1527 | SPAGAIN; |
|
|
1528 | |
|
|
1529 | FREETMPS; |
|
|
1530 | LEAVE; |
|
|
1531 | continue; |
|
|
1532 | } |
|
|
1533 | |
|
|
1534 | ta->next = SvSTATE (next_sv); |
|
|
1535 | |
|
|
1536 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1537 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1538 | { |
|
|
1539 | UNLOCK; |
|
|
1540 | SvREFCNT_dec (next_sv); |
|
|
1541 | /* coro_nready is already taken care of by destroy */ |
|
|
1542 | continue; |
|
|
1543 | } |
|
|
1544 | |
|
|
1545 | --coro_nready; |
|
|
1546 | UNLOCK; |
|
|
1547 | break; |
|
|
1548 | } |
|
|
1549 | |
|
|
1550 | /* free this only after the transfer */ |
|
|
1551 | prev_sv = SvRV (coro_current); |
|
|
1552 | ta->prev = SvSTATE (prev_sv); |
|
|
1553 | TRANSFER_CHECK (*ta); |
|
|
1554 | assert (ta->next->flags & CF_READY); |
|
|
1555 | ta->next->flags &= ~CF_READY; |
|
|
1556 | SvRV_set (coro_current, next_sv); |
878 | |
1557 | |
879 | LOCK; |
1558 | LOCK; |
880 | coro_enq (SvREFCNT_inc (coro)); |
1559 | free_coro_mortal (aTHX); |
|
|
1560 | coro_mortal = prev_sv; |
881 | UNLOCK; |
1561 | UNLOCK; |
882 | } |
1562 | } |
883 | |
1563 | |
884 | static void |
1564 | static void |
885 | prepare_schedule (struct transfer_args *ta) |
|
|
886 | { |
|
|
887 | SV *current, *prev, *next; |
|
|
888 | |
|
|
889 | current = GvSV (coro_current); |
|
|
890 | |
|
|
891 | for (;;) |
|
|
892 | { |
|
|
893 | LOCK; |
|
|
894 | next = coro_deq (PRIO_MIN); |
|
|
895 | UNLOCK; |
|
|
896 | |
|
|
897 | if (next) |
|
|
898 | break; |
|
|
899 | |
|
|
900 | { |
|
|
901 | dSP; |
|
|
902 | |
|
|
903 | ENTER; |
|
|
904 | SAVETMPS; |
|
|
905 | |
|
|
906 | PUSHMARK (SP); |
|
|
907 | PUTBACK; |
|
|
908 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
909 | |
|
|
910 | FREETMPS; |
|
|
911 | LEAVE; |
|
|
912 | } |
|
|
913 | } |
|
|
914 | |
|
|
915 | prev = SvRV (current); |
|
|
916 | SvRV (current) = next; |
|
|
917 | |
|
|
918 | /* free this only after the transfer */ |
|
|
919 | LOCK; |
|
|
920 | free_coro_mortal (); |
|
|
921 | UNLOCK; |
|
|
922 | coro_mortal = prev; |
|
|
923 | |
|
|
924 | ta->prev = SvSTATE (prev); |
|
|
925 | ta->next = SvSTATE (next); |
|
|
926 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
927 | } |
|
|
928 | |
|
|
929 | static void |
|
|
930 | prepare_cede (struct transfer_args *ta) |
1565 | prepare_cede (pTHX_ struct transfer_args *ta) |
931 | { |
1566 | { |
932 | LOCK; |
1567 | api_ready (coro_current); |
933 | coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
934 | UNLOCK; |
|
|
935 | |
|
|
936 | prepare_schedule (ta); |
1568 | prepare_schedule (aTHX_ ta); |
|
|
1569 | } |
|
|
1570 | |
|
|
1571 | static int |
|
|
1572 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1573 | { |
|
|
1574 | if (coro_nready) |
|
|
1575 | { |
|
|
1576 | SV *prev = SvRV (coro_current); |
|
|
1577 | prepare_schedule (aTHX_ ta); |
|
|
1578 | api_ready (prev); |
|
|
1579 | return 1; |
|
|
1580 | } |
|
|
1581 | else |
|
|
1582 | return 0; |
937 | } |
1583 | } |
938 | |
1584 | |
939 | static void |
1585 | static void |
940 | api_schedule (void) |
1586 | api_schedule (void) |
941 | { |
1587 | { |
942 | dTHX; |
1588 | dTHX; |
943 | struct transfer_args ta; |
1589 | struct transfer_args ta; |
944 | |
1590 | |
945 | prepare_schedule (&ta); |
1591 | prepare_schedule (aTHX_ &ta); |
946 | TRANSFER (ta); |
1592 | TRANSFER (ta, 1); |
947 | } |
1593 | } |
948 | |
1594 | |
949 | static void |
1595 | static int |
950 | api_cede (void) |
1596 | api_cede (void) |
951 | { |
1597 | { |
952 | dTHX; |
1598 | dTHX; |
953 | struct transfer_args ta; |
1599 | struct transfer_args ta; |
954 | |
1600 | |
955 | prepare_cede (&ta); |
1601 | prepare_cede (aTHX_ &ta); |
|
|
1602 | |
|
|
1603 | if (expect_true (ta.prev != ta.next)) |
|
|
1604 | { |
956 | TRANSFER (ta); |
1605 | TRANSFER (ta, 1); |
|
|
1606 | return 1; |
|
|
1607 | } |
|
|
1608 | else |
|
|
1609 | return 0; |
957 | } |
1610 | } |
958 | |
1611 | |
|
|
1612 | static int |
|
|
1613 | api_cede_notself (void) |
|
|
1614 | { |
|
|
1615 | dTHX; |
|
|
1616 | struct transfer_args ta; |
|
|
1617 | |
|
|
1618 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1619 | { |
|
|
1620 | TRANSFER (ta, 1); |
|
|
1621 | return 1; |
|
|
1622 | } |
|
|
1623 | else |
|
|
1624 | return 0; |
|
|
1625 | } |
|
|
1626 | |
|
|
1627 | static void |
|
|
1628 | api_trace (SV *coro_sv, int flags) |
|
|
1629 | { |
|
|
1630 | dTHX; |
|
|
1631 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1632 | |
|
|
1633 | if (flags & CC_TRACE) |
|
|
1634 | { |
|
|
1635 | if (!coro->cctx) |
|
|
1636 | coro->cctx = cctx_new (); |
|
|
1637 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1638 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1639 | |
|
|
1640 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1641 | } |
|
|
1642 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1643 | { |
|
|
1644 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1645 | |
|
|
1646 | if (coro->flags & CF_RUNNING) |
|
|
1647 | PL_runops = RUNOPS_DEFAULT; |
|
|
1648 | else |
|
|
1649 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1650 | } |
|
|
1651 | } |
|
|
1652 | |
|
|
1653 | static int |
|
|
1654 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
1655 | { |
|
|
1656 | AV *padlist; |
|
|
1657 | AV *av = (AV *)mg->mg_obj; |
|
|
1658 | |
|
|
1659 | abort (); |
|
|
1660 | |
|
|
1661 | return 0; |
|
|
1662 | } |
|
|
1663 | |
|
|
1664 | static MGVTBL coro_gensub_vtbl = { |
|
|
1665 | 0, 0, 0, 0, |
|
|
1666 | coro_gensub_free |
|
|
1667 | }; |
|
|
1668 | |
|
|
1669 | /*****************************************************************************/ |
|
|
1670 | /* PerlIO::cede */ |
|
|
1671 | |
|
|
1672 | typedef struct |
|
|
1673 | { |
|
|
1674 | PerlIOBuf base; |
|
|
1675 | NV next, every; |
|
|
1676 | } PerlIOCede; |
|
|
1677 | |
|
|
1678 | static IV |
|
|
1679 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
1680 | { |
|
|
1681 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1682 | |
|
|
1683 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
1684 | self->next = nvtime () + self->every; |
|
|
1685 | |
|
|
1686 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
1687 | } |
|
|
1688 | |
|
|
1689 | static SV * |
|
|
1690 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
1691 | { |
|
|
1692 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1693 | |
|
|
1694 | return newSVnv (self->every); |
|
|
1695 | } |
|
|
1696 | |
|
|
1697 | static IV |
|
|
1698 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
1699 | { |
|
|
1700 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1701 | double now = nvtime (); |
|
|
1702 | |
|
|
1703 | if (now >= self->next) |
|
|
1704 | { |
|
|
1705 | api_cede (); |
|
|
1706 | self->next = now + self->every; |
|
|
1707 | } |
|
|
1708 | |
|
|
1709 | return PerlIOBuf_flush (aTHX_ f); |
|
|
1710 | } |
|
|
1711 | |
|
|
1712 | static PerlIO_funcs PerlIO_cede = |
|
|
1713 | { |
|
|
1714 | sizeof(PerlIO_funcs), |
|
|
1715 | "cede", |
|
|
1716 | sizeof(PerlIOCede), |
|
|
1717 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
1718 | PerlIOCede_pushed, |
|
|
1719 | PerlIOBuf_popped, |
|
|
1720 | PerlIOBuf_open, |
|
|
1721 | PerlIOBase_binmode, |
|
|
1722 | PerlIOCede_getarg, |
|
|
1723 | PerlIOBase_fileno, |
|
|
1724 | PerlIOBuf_dup, |
|
|
1725 | PerlIOBuf_read, |
|
|
1726 | PerlIOBuf_unread, |
|
|
1727 | PerlIOBuf_write, |
|
|
1728 | PerlIOBuf_seek, |
|
|
1729 | PerlIOBuf_tell, |
|
|
1730 | PerlIOBuf_close, |
|
|
1731 | PerlIOCede_flush, |
|
|
1732 | PerlIOBuf_fill, |
|
|
1733 | PerlIOBase_eof, |
|
|
1734 | PerlIOBase_error, |
|
|
1735 | PerlIOBase_clearerr, |
|
|
1736 | PerlIOBase_setlinebuf, |
|
|
1737 | PerlIOBuf_get_base, |
|
|
1738 | PerlIOBuf_bufsiz, |
|
|
1739 | PerlIOBuf_get_ptr, |
|
|
1740 | PerlIOBuf_get_cnt, |
|
|
1741 | PerlIOBuf_set_ptrcnt, |
|
|
1742 | }; |
|
|
1743 | |
|
|
1744 | |
959 | MODULE = Coro::State PACKAGE = Coro::State |
1745 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
960 | |
1746 | |
961 | PROTOTYPES: DISABLE |
1747 | PROTOTYPES: DISABLE |
962 | |
1748 | |
963 | BOOT: |
1749 | BOOT: |
964 | { |
1750 | { |
965 | #ifdef USE_ITHREADS |
1751 | #ifdef USE_ITHREADS |
966 | MUTEX_INIT (&coro_mutex); |
1752 | MUTEX_INIT (&coro_lock); |
967 | #endif |
1753 | #endif |
968 | BOOT_PAGESIZE; |
1754 | BOOT_PAGESIZE; |
969 | |
1755 | |
|
|
1756 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1757 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1758 | |
|
|
1759 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
1760 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
1761 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
1762 | |
|
|
1763 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
1764 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
1765 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
|
|
1766 | |
970 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1767 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
971 | |
1768 | |
972 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1769 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
973 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1770 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
974 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1771 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1772 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
975 | |
1773 | |
976 | main_mainstack = PL_mainstack; |
1774 | main_mainstack = PL_mainstack; |
|
|
1775 | main_top_env = PL_top_env; |
977 | |
1776 | |
|
|
1777 | while (main_top_env->je_prev) |
|
|
1778 | main_top_env = main_top_env->je_prev; |
|
|
1779 | |
978 | coroapi.ver = CORO_API_VERSION; |
1780 | coroapi.ver = CORO_API_VERSION; |
|
|
1781 | coroapi.rev = CORO_API_REVISION; |
979 | coroapi.transfer = api_transfer; |
1782 | coroapi.transfer = api_transfer; |
|
|
1783 | |
|
|
1784 | { |
|
|
1785 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
1786 | |
|
|
1787 | if (!svp) croak ("Time::HiRes is required"); |
|
|
1788 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
1789 | |
|
|
1790 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
1791 | } |
980 | |
1792 | |
981 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1793 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
982 | } |
1794 | } |
983 | |
1795 | |
984 | SV * |
1796 | SV * |
985 | new (char *klass, ...) |
1797 | new (char *klass, ...) |
986 | CODE: |
1798 | CODE: |
987 | { |
1799 | { |
988 | struct coro *coro; |
1800 | struct coro *coro; |
|
|
1801 | MAGIC *mg; |
989 | HV *hv; |
1802 | HV *hv; |
990 | int i; |
1803 | int i; |
991 | |
1804 | |
992 | Newz (0, coro, 1, struct coro); |
1805 | Newz (0, coro, 1, struct coro); |
993 | coro->args = newAV (); |
1806 | coro->args = newAV (); |
|
|
1807 | coro->flags = CF_NEW; |
994 | |
1808 | |
|
|
1809 | if (coro_first) coro_first->prev = coro; |
|
|
1810 | coro->next = coro_first; |
|
|
1811 | coro_first = coro; |
|
|
1812 | |
995 | hv = newHV (); |
1813 | coro->hv = hv = newHV (); |
996 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1814 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
1815 | mg->mg_flags |= MGf_DUP; |
997 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1816 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
998 | |
1817 | |
|
|
1818 | av_extend (coro->args, items - 1); |
999 | for (i = 1; i < items; i++) |
1819 | for (i = 1; i < items; i++) |
1000 | av_push (coro->args, newSVsv (ST (i))); |
1820 | av_push (coro->args, newSVsv (ST (i))); |
1001 | } |
1821 | } |
1002 | OUTPUT: |
1822 | OUTPUT: |
1003 | RETVAL |
1823 | RETVAL |
1004 | |
1824 | |
|
|
1825 | # these not obviously related functions are all rolled into the same xs |
|
|
1826 | # function to increase chances that they all will call transfer with the same |
|
|
1827 | # stack offset |
1005 | void |
1828 | void |
1006 | _set_stacklevel (...) |
1829 | _set_stacklevel (...) |
1007 | ALIAS: |
1830 | ALIAS: |
1008 | Coro::State::transfer = 1 |
1831 | Coro::State::transfer = 1 |
1009 | Coro::schedule = 2 |
1832 | Coro::schedule = 2 |
1010 | Coro::cede = 3 |
1833 | Coro::cede = 3 |
1011 | Coro::Cont::yield = 4 |
1834 | Coro::cede_notself = 4 |
1012 | CODE: |
1835 | CODE: |
1013 | { |
1836 | { |
1014 | struct transfer_args ta; |
1837 | struct transfer_args ta; |
1015 | |
1838 | |
|
|
1839 | PUTBACK; |
1016 | switch (ix) |
1840 | switch (ix) |
1017 | { |
1841 | { |
1018 | case 0: |
1842 | case 0: |
1019 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1843 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1020 | ta.next = 0; |
1844 | ta.next = 0; |
1021 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1022 | break; |
1845 | break; |
1023 | |
1846 | |
1024 | case 1: |
1847 | case 1: |
1025 | if (items != 3) |
1848 | if (items != 2) |
1026 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
1849 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
1027 | |
1850 | |
1028 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
1851 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1029 | break; |
1852 | break; |
1030 | |
1853 | |
1031 | case 2: |
1854 | case 2: |
1032 | prepare_schedule (&ta); |
1855 | prepare_schedule (aTHX_ &ta); |
1033 | break; |
1856 | break; |
1034 | |
1857 | |
1035 | case 3: |
1858 | case 3: |
1036 | prepare_cede (&ta); |
1859 | prepare_cede (aTHX_ &ta); |
1037 | break; |
1860 | break; |
1038 | |
1861 | |
1039 | case 4: |
1862 | case 4: |
1040 | { |
1863 | if (!prepare_cede_notself (aTHX_ &ta)) |
1041 | SV *yieldstack; |
1864 | XSRETURN_EMPTY; |
1042 | SV *sv; |
|
|
1043 | AV *defav = GvAV (PL_defgv); |
|
|
1044 | |
1865 | |
1045 | yieldstack = *hv_fetch ( |
|
|
1046 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1047 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1048 | 0 |
|
|
1049 | ); |
|
|
1050 | |
|
|
1051 | /* set up @_ -- ugly */ |
|
|
1052 | av_clear (defav); |
|
|
1053 | av_fill (defav, items - 1); |
|
|
1054 | while (items--) |
|
|
1055 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1056 | |
|
|
1057 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1058 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1059 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1060 | ta.flags = 0; |
|
|
1061 | SvREFCNT_dec (sv); |
|
|
1062 | } |
|
|
1063 | break; |
1866 | break; |
1064 | |
|
|
1065 | } |
1867 | } |
|
|
1868 | SPAGAIN; |
1066 | |
1869 | |
|
|
1870 | BARRIER; |
|
|
1871 | PUTBACK; |
1067 | TRANSFER (ta); |
1872 | TRANSFER (ta, 0); |
|
|
1873 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1874 | /* be extra careful not to ever do anything after TRANSFER */ |
1068 | } |
1875 | } |
|
|
1876 | |
|
|
1877 | bool |
|
|
1878 | _destroy (SV *coro_sv) |
|
|
1879 | CODE: |
|
|
1880 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1881 | OUTPUT: |
|
|
1882 | RETVAL |
1069 | |
1883 | |
1070 | void |
1884 | void |
1071 | _clone_state_from (SV *dst, SV *src) |
|
|
1072 | CODE: |
|
|
1073 | { |
|
|
1074 | struct coro *coro_src = SvSTATE (src); |
|
|
1075 | |
|
|
1076 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1077 | |
|
|
1078 | ++coro_src->refcnt; |
|
|
1079 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1080 | } |
|
|
1081 | |
|
|
1082 | void |
|
|
1083 | _exit (code) |
1885 | _exit (int code) |
1084 | int code |
|
|
1085 | PROTOTYPE: $ |
1886 | PROTOTYPE: $ |
1086 | CODE: |
1887 | CODE: |
1087 | _exit (code); |
1888 | _exit (code); |
|
|
1889 | |
|
|
1890 | int |
|
|
1891 | cctx_stacksize (int new_stacksize = 0) |
|
|
1892 | CODE: |
|
|
1893 | RETVAL = coro_stacksize; |
|
|
1894 | if (new_stacksize) |
|
|
1895 | coro_stacksize = new_stacksize; |
|
|
1896 | OUTPUT: |
|
|
1897 | RETVAL |
1088 | |
1898 | |
1089 | int |
1899 | int |
1090 | cctx_count () |
1900 | cctx_count () |
1091 | CODE: |
1901 | CODE: |
1092 | RETVAL = cctx_count; |
1902 | RETVAL = cctx_count; |
… | |
… | |
1098 | CODE: |
1908 | CODE: |
1099 | RETVAL = cctx_idle; |
1909 | RETVAL = cctx_idle; |
1100 | OUTPUT: |
1910 | OUTPUT: |
1101 | RETVAL |
1911 | RETVAL |
1102 | |
1912 | |
|
|
1913 | void |
|
|
1914 | list () |
|
|
1915 | PPCODE: |
|
|
1916 | { |
|
|
1917 | struct coro *coro; |
|
|
1918 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1919 | if (coro->hv) |
|
|
1920 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1921 | } |
|
|
1922 | |
|
|
1923 | void |
|
|
1924 | call (Coro::State coro, SV *coderef) |
|
|
1925 | ALIAS: |
|
|
1926 | eval = 1 |
|
|
1927 | CODE: |
|
|
1928 | { |
|
|
1929 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
|
|
1930 | { |
|
|
1931 | struct coro temp; |
|
|
1932 | |
|
|
1933 | if (!(coro->flags & CF_RUNNING)) |
|
|
1934 | { |
|
|
1935 | PUTBACK; |
|
|
1936 | save_perl (aTHX_ &temp); |
|
|
1937 | load_perl (aTHX_ coro); |
|
|
1938 | } |
|
|
1939 | |
|
|
1940 | { |
|
|
1941 | dSP; |
|
|
1942 | ENTER; |
|
|
1943 | SAVETMPS; |
|
|
1944 | PUTBACK; |
|
|
1945 | PUSHSTACK; |
|
|
1946 | PUSHMARK (SP); |
|
|
1947 | |
|
|
1948 | if (ix) |
|
|
1949 | eval_sv (coderef, 0); |
|
|
1950 | else |
|
|
1951 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1952 | |
|
|
1953 | POPSTACK; |
|
|
1954 | SPAGAIN; |
|
|
1955 | FREETMPS; |
|
|
1956 | LEAVE; |
|
|
1957 | PUTBACK; |
|
|
1958 | } |
|
|
1959 | |
|
|
1960 | if (!(coro->flags & CF_RUNNING)) |
|
|
1961 | { |
|
|
1962 | save_perl (aTHX_ coro); |
|
|
1963 | load_perl (aTHX_ &temp); |
|
|
1964 | SPAGAIN; |
|
|
1965 | } |
|
|
1966 | } |
|
|
1967 | } |
|
|
1968 | |
|
|
1969 | SV * |
|
|
1970 | is_ready (Coro::State coro) |
|
|
1971 | PROTOTYPE: $ |
|
|
1972 | ALIAS: |
|
|
1973 | is_ready = CF_READY |
|
|
1974 | is_running = CF_RUNNING |
|
|
1975 | is_new = CF_NEW |
|
|
1976 | is_destroyed = CF_DESTROYED |
|
|
1977 | CODE: |
|
|
1978 | RETVAL = boolSV (coro->flags & ix); |
|
|
1979 | OUTPUT: |
|
|
1980 | RETVAL |
|
|
1981 | |
|
|
1982 | void |
|
|
1983 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1984 | |
|
|
1985 | SV * |
|
|
1986 | has_cctx (Coro::State coro) |
|
|
1987 | PROTOTYPE: $ |
|
|
1988 | CODE: |
|
|
1989 | RETVAL = boolSV (!!coro->cctx); |
|
|
1990 | OUTPUT: |
|
|
1991 | RETVAL |
|
|
1992 | |
|
|
1993 | int |
|
|
1994 | is_traced (Coro::State coro) |
|
|
1995 | PROTOTYPE: $ |
|
|
1996 | CODE: |
|
|
1997 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1998 | OUTPUT: |
|
|
1999 | RETVAL |
|
|
2000 | |
|
|
2001 | IV |
|
|
2002 | rss (Coro::State coro) |
|
|
2003 | PROTOTYPE: $ |
|
|
2004 | ALIAS: |
|
|
2005 | usecount = 1 |
|
|
2006 | CODE: |
|
|
2007 | switch (ix) |
|
|
2008 | { |
|
|
2009 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
2010 | case 1: RETVAL = coro->usecount; break; |
|
|
2011 | } |
|
|
2012 | OUTPUT: |
|
|
2013 | RETVAL |
|
|
2014 | |
|
|
2015 | void |
|
|
2016 | force_cctx () |
|
|
2017 | CODE: |
|
|
2018 | struct coro *coro = SvSTATE (coro_current); |
|
|
2019 | coro->cctx->idle_sp = 0; |
|
|
2020 | |
|
|
2021 | void |
|
|
2022 | swap_defsv (Coro::State self) |
|
|
2023 | PROTOTYPE: $ |
|
|
2024 | ALIAS: |
|
|
2025 | swap_defav = 1 |
|
|
2026 | CODE: |
|
|
2027 | if (!self->slot) |
|
|
2028 | croak ("cannot swap state with coroutine that has no saved state"); |
|
|
2029 | else |
|
|
2030 | { |
|
|
2031 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2032 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2033 | |
|
|
2034 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2035 | } |
|
|
2036 | |
1103 | MODULE = Coro::State PACKAGE = Coro |
2037 | MODULE = Coro::State PACKAGE = Coro |
1104 | |
2038 | |
1105 | BOOT: |
2039 | BOOT: |
1106 | { |
2040 | { |
1107 | int i; |
2041 | int i; |
1108 | |
2042 | |
|
|
2043 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2044 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2045 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
2046 | |
|
|
2047 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
|
|
2048 | SvREADONLY_on (coro_current); |
|
|
2049 | |
1109 | coro_stash = gv_stashpv ("Coro", TRUE); |
2050 | coro_stash = gv_stashpv ("Coro", TRUE); |
1110 | |
2051 | |
1111 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2052 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1112 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2053 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1113 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2054 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1114 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2055 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1115 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
2056 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1116 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
2057 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1117 | |
2058 | |
1118 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1119 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1120 | |
|
|
1121 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2059 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1122 | coro_ready[i] = newAV (); |
2060 | coro_ready[i] = newAV (); |
1123 | |
2061 | |
1124 | { |
2062 | { |
1125 | SV *sv = perl_get_sv("Coro::API", 1); |
2063 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
2064 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1126 | |
2065 | |
1127 | coroapi.schedule = api_schedule; |
2066 | coroapi.schedule = api_schedule; |
1128 | coroapi.cede = api_cede; |
2067 | coroapi.cede = api_cede; |
|
|
2068 | coroapi.cede_notself = api_cede_notself; |
1129 | coroapi.ready = api_ready; |
2069 | coroapi.ready = api_ready; |
|
|
2070 | coroapi.is_ready = api_is_ready; |
1130 | coroapi.nready = &coro_nready; |
2071 | coroapi.nready = &coro_nready; |
1131 | coroapi.current = coro_current; |
2072 | coroapi.current = coro_current; |
1132 | |
2073 | |
1133 | GCoroAPI = &coroapi; |
2074 | GCoroAPI = &coroapi; |
1134 | sv_setiv (sv, (IV)&coroapi); |
2075 | sv_setiv (sv, (IV)&coroapi); |
1135 | SvREADONLY_on (sv); |
2076 | SvREADONLY_on (sv); |
1136 | } |
2077 | } |
1137 | } |
2078 | } |
|
|
2079 | |
|
|
2080 | void |
|
|
2081 | _set_current (SV *current) |
|
|
2082 | PROTOTYPE: $ |
|
|
2083 | CODE: |
|
|
2084 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
2085 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2086 | |
|
|
2087 | void |
|
|
2088 | _set_readyhook (SV *hook) |
|
|
2089 | PROTOTYPE: $ |
|
|
2090 | CODE: |
|
|
2091 | LOCK; |
|
|
2092 | SvREFCNT_dec (coro_readyhook); |
|
|
2093 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
|
|
2094 | UNLOCK; |
1138 | |
2095 | |
1139 | int |
2096 | int |
1140 | prio (Coro::State coro, int newprio = 0) |
2097 | prio (Coro::State coro, int newprio = 0) |
1141 | ALIAS: |
2098 | ALIAS: |
1142 | nice = 1 |
2099 | nice = 1 |
… | |
… | |
1145 | RETVAL = coro->prio; |
2102 | RETVAL = coro->prio; |
1146 | |
2103 | |
1147 | if (items > 1) |
2104 | if (items > 1) |
1148 | { |
2105 | { |
1149 | if (ix) |
2106 | if (ix) |
1150 | newprio += coro->prio; |
2107 | newprio = coro->prio - newprio; |
1151 | |
2108 | |
1152 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
2109 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1153 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
2110 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1154 | |
2111 | |
1155 | coro->prio = newprio; |
2112 | coro->prio = newprio; |
1156 | } |
2113 | } |
1157 | } |
2114 | } |
|
|
2115 | OUTPUT: |
|
|
2116 | RETVAL |
1158 | |
2117 | |
1159 | void |
2118 | SV * |
1160 | ready (SV *self) |
2119 | ready (SV *self) |
1161 | PROTOTYPE: $ |
2120 | PROTOTYPE: $ |
1162 | CODE: |
2121 | CODE: |
1163 | api_ready (self); |
2122 | RETVAL = boolSV (api_ready (self)); |
|
|
2123 | OUTPUT: |
|
|
2124 | RETVAL |
1164 | |
2125 | |
1165 | int |
2126 | int |
1166 | nready (...) |
2127 | nready (...) |
1167 | PROTOTYPE: |
2128 | PROTOTYPE: |
1168 | CODE: |
2129 | CODE: |
1169 | RETVAL = coro_nready; |
2130 | RETVAL = coro_nready; |
1170 | OUTPUT: |
2131 | OUTPUT: |
1171 | RETVAL |
2132 | RETVAL |
1172 | |
2133 | |
1173 | MODULE = Coro::State PACKAGE = Coro::AIO |
2134 | void |
|
|
2135 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2136 | PROTOTYPE: $;$ |
|
|
2137 | CODE: |
|
|
2138 | SvREFCNT_dec (self->throw); |
|
|
2139 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2140 | |
|
|
2141 | # for async_pool speedup |
|
|
2142 | void |
|
|
2143 | _pool_1 (SV *cb) |
|
|
2144 | CODE: |
|
|
2145 | { |
|
|
2146 | struct coro *coro = SvSTATE (coro_current); |
|
|
2147 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2148 | AV *defav = GvAV (PL_defgv); |
|
|
2149 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2150 | AV *invoke_av; |
|
|
2151 | int i, len; |
|
|
2152 | |
|
|
2153 | if (!invoke) |
|
|
2154 | { |
|
|
2155 | SV *old = PL_diehook; |
|
|
2156 | PL_diehook = 0; |
|
|
2157 | SvREFCNT_dec (old); |
|
|
2158 | croak ("\3async_pool terminate\2\n"); |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2162 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2163 | |
|
|
2164 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2165 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2166 | |
|
|
2167 | invoke_av = (AV *)SvRV (invoke); |
|
|
2168 | len = av_len (invoke_av); |
|
|
2169 | |
|
|
2170 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2171 | |
|
|
2172 | if (len > 0) |
|
|
2173 | { |
|
|
2174 | av_fill (defav, len - 1); |
|
|
2175 | for (i = 0; i < len; ++i) |
|
|
2176 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2177 | } |
|
|
2178 | |
|
|
2179 | SvREFCNT_dec (invoke); |
|
|
2180 | } |
|
|
2181 | |
|
|
2182 | void |
|
|
2183 | _pool_2 (SV *cb) |
|
|
2184 | CODE: |
|
|
2185 | { |
|
|
2186 | struct coro *coro = SvSTATE (coro_current); |
|
|
2187 | |
|
|
2188 | sv_setsv (cb, &PL_sv_undef); |
|
|
2189 | |
|
|
2190 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2191 | coro->saved_deffh = 0; |
|
|
2192 | |
|
|
2193 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
2194 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2195 | { |
|
|
2196 | SV *old = PL_diehook; |
|
|
2197 | PL_diehook = 0; |
|
|
2198 | SvREFCNT_dec (old); |
|
|
2199 | croak ("\3async_pool terminate\2\n"); |
|
|
2200 | } |
|
|
2201 | |
|
|
2202 | av_clear (GvAV (PL_defgv)); |
|
|
2203 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2204 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2205 | |
|
|
2206 | coro->prio = 0; |
|
|
2207 | |
|
|
2208 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2209 | api_trace (coro_current, 0); |
|
|
2210 | |
|
|
2211 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2212 | } |
|
|
2213 | |
|
|
2214 | #if 0 |
|
|
2215 | |
|
|
2216 | void |
|
|
2217 | _generator_call (...) |
|
|
2218 | PROTOTYPE: @ |
|
|
2219 | PPCODE: |
|
|
2220 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2221 | xxxx |
|
|
2222 | abort (); |
1174 | |
2223 | |
1175 | SV * |
2224 | SV * |
1176 | _get_state () |
2225 | gensub (SV *sub, ...) |
1177 | CODE: |
2226 | PROTOTYPE: &;@ |
|
|
2227 | CODE: |
1178 | { |
2228 | { |
1179 | struct { |
2229 | struct coro *coro; |
1180 | int errorno; |
2230 | MAGIC *mg; |
1181 | int laststype; |
2231 | CV *xcv; |
1182 | int laststatval; |
2232 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
1183 | Stat_t statcache; |
2233 | int i; |
1184 | } data; |
|
|
1185 | |
2234 | |
1186 | data.errorno = errno; |
2235 | CvGV (ncv) = CvGV (cv); |
1187 | data.laststype = PL_laststype; |
2236 | CvFILE (ncv) = CvFILE (cv); |
1188 | data.laststatval = PL_laststatval; |
|
|
1189 | data.statcache = PL_statcache; |
|
|
1190 | |
2237 | |
1191 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
2238 | Newz (0, coro, 1, struct coro); |
|
|
2239 | coro->args = newAV (); |
|
|
2240 | coro->flags = CF_NEW; |
|
|
2241 | |
|
|
2242 | av_extend (coro->args, items - 1); |
|
|
2243 | for (i = 1; i < items; i++) |
|
|
2244 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2245 | |
|
|
2246 | CvISXSUB_on (ncv); |
|
|
2247 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2248 | |
|
|
2249 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2250 | |
|
|
2251 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2252 | CvANON_on (ncv); |
|
|
2253 | |
|
|
2254 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2255 | RETVAL = newRV_noinc ((SV *)ncv); |
1192 | } |
2256 | } |
1193 | OUTPUT: |
2257 | OUTPUT: |
1194 | RETVAL |
2258 | RETVAL |
1195 | |
2259 | |
|
|
2260 | #endif |
|
|
2261 | |
|
|
2262 | |
|
|
2263 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2264 | |
1196 | void |
2265 | void |
1197 | _set_state (char *data_) |
2266 | _get_state (SV *self) |
|
|
2267 | PPCODE: |
|
|
2268 | { |
|
|
2269 | AV *defav = GvAV (PL_defgv); |
|
|
2270 | AV *av = newAV (); |
|
|
2271 | int i; |
|
|
2272 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2273 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2274 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2275 | SvPOK_only (data_sv); |
|
|
2276 | |
|
|
2277 | data->errorno = errno; |
|
|
2278 | data->laststype = PL_laststype; |
|
|
2279 | data->laststatval = PL_laststatval; |
|
|
2280 | data->statcache = PL_statcache; |
|
|
2281 | |
|
|
2282 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2283 | |
|
|
2284 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2285 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2286 | |
|
|
2287 | av_push (av, data_sv); |
|
|
2288 | |
|
|
2289 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2290 | |
|
|
2291 | api_ready (self); |
|
|
2292 | } |
|
|
2293 | |
|
|
2294 | void |
|
|
2295 | _set_state (SV *state) |
1198 | PROTOTYPE: $ |
2296 | PROTOTYPE: $ |
|
|
2297 | PPCODE: |
|
|
2298 | { |
|
|
2299 | AV *av = (AV *)SvRV (state); |
|
|
2300 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2301 | int i; |
|
|
2302 | |
|
|
2303 | errno = data->errorno; |
|
|
2304 | PL_laststype = data->laststype; |
|
|
2305 | PL_laststatval = data->laststatval; |
|
|
2306 | PL_statcache = data->statcache; |
|
|
2307 | |
|
|
2308 | EXTEND (SP, AvFILLp (av)); |
|
|
2309 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2310 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2311 | } |
|
|
2312 | |
|
|
2313 | |
|
|
2314 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2315 | |
|
|
2316 | BOOT: |
|
|
2317 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2318 | |
|
|
2319 | SV * |
|
|
2320 | _schedule (...) |
|
|
2321 | PROTOTYPE: @ |
1199 | CODE: |
2322 | CODE: |
1200 | { |
2323 | { |
1201 | struct { |
2324 | static int incede; |
1202 | int errorno; |
|
|
1203 | int laststype; |
|
|
1204 | int laststatval; |
|
|
1205 | Stat_t statcache; |
|
|
1206 | } *data = (void *)data_; |
|
|
1207 | |
2325 | |
1208 | errno = data->errorno; |
2326 | api_cede_notself (); |
1209 | PL_laststype = data->laststype; |
2327 | |
1210 | PL_laststatval = data->laststatval; |
2328 | ++incede; |
1211 | PL_statcache = data->statcache; |
2329 | while (coro_nready >= incede && api_cede ()) |
|
|
2330 | ; |
|
|
2331 | |
|
|
2332 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2333 | if (coro_nready >= incede) |
|
|
2334 | { |
|
|
2335 | PUSHMARK (SP); |
|
|
2336 | PUTBACK; |
|
|
2337 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2338 | SPAGAIN; |
|
|
2339 | } |
|
|
2340 | |
|
|
2341 | --incede; |
1212 | } |
2342 | } |
|
|
2343 | |
|
|
2344 | |
|
|
2345 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
2346 | |
|
|
2347 | BOOT: |
|
|
2348 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |