1 | #define PERL_NO_GET_CONTEXT |
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2 | |
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3 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
4 | |
2 | |
5 | #include "EXTERN.h" |
3 | #include "EXTERN.h" |
6 | #include "perl.h" |
4 | #include "perl.h" |
7 | #include "XSUB.h" |
5 | #include "XSUB.h" |
8 | |
6 | |
9 | #include "patchlevel.h" |
7 | #include "patchlevel.h" |
10 | |
8 | |
11 | #if PERL_VERSION < 6 |
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 | /* the maximum number of idle cctx that will be pooled */ |
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14 | #define MAX_IDLE_CCTX 8 |
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15 | |
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16 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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17 | (PERL_REVISION > (a) \ |
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18 | || (PERL_REVISION == (a) \ |
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19 | && (PERL_VERSION > (b) \ |
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20 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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21 | |
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22 | #if !PERL_VERSION_ATLEAST (5,6,0) |
12 | # ifndef PL_ppaddr |
23 | # ifndef PL_ppaddr |
13 | # define PL_ppaddr ppaddr |
24 | # define PL_ppaddr ppaddr |
14 | # endif |
25 | # endif |
15 | # ifndef call_sv |
26 | # ifndef call_sv |
16 | # define call_sv perl_call_sv |
27 | # define call_sv perl_call_sv |
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27 | # ifndef IS_PADCONST |
38 | # ifndef IS_PADCONST |
28 | # define IS_PADCONST(v) 0 |
39 | # define IS_PADCONST(v) 0 |
29 | # endif |
40 | # endif |
30 | #endif |
41 | #endif |
31 | |
42 | |
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43 | #include <stdio.h> |
32 | #include <errno.h> |
44 | #include <errno.h> |
33 | |
45 | |
34 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
46 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
35 | # undef STACKGUARD |
47 | # undef STACKGUARD |
36 | #endif |
48 | #endif |
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53 | # ifndef PAGESIZE |
65 | # ifndef PAGESIZE |
54 | # define PAGESIZE pagesize |
66 | # define PAGESIZE pagesize |
55 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
67 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
56 | static long pagesize; |
68 | static long pagesize; |
57 | # else |
69 | # else |
58 | # define BOOT_PAGESIZE |
70 | # define BOOT_PAGESIZE (void)0 |
59 | # endif |
71 | # endif |
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72 | #else |
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73 | # define PAGESIZE 0 |
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74 | # define BOOT_PAGESIZE (void)0 |
60 | #endif |
75 | #endif |
61 | |
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62 | #define SUB_INIT "Coro::State::initialize" |
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63 | |
76 | |
64 | /* The next macro should declare a variable stacklevel that contains and approximation |
77 | /* The next macro should declare a variable stacklevel that contains and approximation |
65 | * to the current C stack pointer. Its property is that it changes with each call |
78 | * to the current C stack pointer. Its property is that it changes with each call |
66 | * and should be unique. */ |
79 | * and should be unique. */ |
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80 | #define dSTACKLEVEL int stacklevel |
67 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
81 | #define STACKLEVEL ((void *)&stacklevel) |
68 | |
82 | |
69 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
83 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
70 | |
84 | |
71 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
85 | #if __GNUC__ >= 3 |
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86 | # define attribute(x) __attribute__(x) |
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87 | #else |
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88 | # define attribute(x) |
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89 | #endif |
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90 | |
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91 | #define NOINLINE attribute ((noinline)) |
72 | |
92 | |
73 | #include "CoroAPI.h" |
93 | #include "CoroAPI.h" |
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94 | |
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95 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
74 | |
96 | |
75 | #ifdef USE_ITHREADS |
97 | #ifdef USE_ITHREADS |
76 | static perl_mutex coro_mutex; |
98 | static perl_mutex coro_mutex; |
77 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
99 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
78 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
100 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
79 | #else |
101 | #else |
80 | # define LOCK (void)0 |
102 | # define LOCK (void)0 |
81 | # define UNLOCK (void)0 |
103 | # define UNLOCK (void)0 |
82 | #endif |
104 | #endif |
83 | |
105 | |
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106 | struct io_state |
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107 | { |
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108 | int errorno; |
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109 | I32 laststype; |
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110 | int laststatval; |
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111 | Stat_t statcache; |
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112 | }; |
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113 | |
84 | static struct CoroAPI coroapi; |
114 | static struct CoroAPI coroapi; |
85 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
115 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
86 | static HV *coro_state_stash, *coro_stash; |
116 | static HV *coro_state_stash, *coro_stash; |
87 | static SV *coro_mortal; /* will be freed after next transfer */ |
117 | static SV *coro_mortal; /* will be freed after next transfer */ |
88 | |
118 | |
89 | /* this is actually not just the c stack but also c registers etc... */ |
119 | static struct coro_cctx *cctx_first; |
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120 | static int cctx_count, cctx_idle; |
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121 | |
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122 | /* this is a structure representing a c-level coroutine */ |
90 | typedef struct coro_stack { |
123 | typedef struct coro_cctx { |
91 | struct coro_stack *next; |
124 | struct coro_cctx *next; |
92 | |
125 | |
93 | void *idle_sp; |
126 | /* the stack */ |
94 | void *sptr; |
127 | void *sptr; |
95 | long ssize; /* positive == mmap, otherwise malloc */ |
128 | long ssize; /* positive == mmap, otherwise malloc */ |
96 | |
129 | |
97 | /* cpu state */ |
130 | /* cpu state */ |
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131 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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132 | JMPENV *top_env; |
98 | coro_context cctx; |
133 | coro_context cctx; |
99 | } coro_stack; |
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100 | |
134 | |
101 | static coro_stack *main_stack; |
135 | int inuse; |
102 | |
136 | |
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137 | #if USE_VALGRIND |
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138 | int valgrind_id; |
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139 | #endif |
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140 | } coro_cctx; |
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141 | |
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142 | enum { |
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143 | CF_RUNNING = 0x0001, /* coroutine is running */ |
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144 | CF_READY = 0x0002, /* coroutine is ready */ |
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145 | CF_NEW = 0x0004, /* ahs never been switched to */ |
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146 | }; |
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147 | |
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148 | /* this is a structure representing a perl-level coroutine */ |
103 | struct coro { |
149 | struct coro { |
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150 | /* the c coroutine allocated to this perl coroutine, if any */ |
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151 | coro_cctx *cctx; |
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152 | |
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153 | /* data associated with this coroutine (initial args) */ |
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154 | AV *args; |
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155 | int refcnt; |
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156 | int flags; |
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157 | |
104 | /* optionally saved, might be zero */ |
158 | /* optionally saved, might be zero */ |
105 | AV *defav; |
159 | AV *defav; |
106 | SV *defsv; |
160 | SV *defsv; |
107 | SV *errsv; |
161 | SV *errsv; |
108 | |
162 | |
109 | /* saved global state not related to stacks */ |
163 | #define VAR(name,type) type name; |
110 | U8 dowarn; |
164 | # include "state.h" |
111 | I32 in_eval; |
165 | #undef VAR |
112 | |
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113 | /* the c stack, if any */ |
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114 | coro_stack *stack; |
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115 | |
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116 | /* the stacks and related info (callchain etc..) */ |
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117 | PERL_SI *curstackinfo; |
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118 | AV *curstack; |
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119 | AV *mainstack; |
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120 | SV **stack_sp; |
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121 | OP *op; |
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122 | SV **curpad; |
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123 | AV *comppad; |
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124 | CV *compcv; |
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125 | SV **stack_base; |
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126 | SV **stack_max; |
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127 | SV **tmps_stack; |
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128 | I32 tmps_floor; |
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129 | I32 tmps_ix; |
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130 | I32 tmps_max; |
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131 | I32 *markstack; |
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132 | I32 *markstack_ptr; |
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133 | I32 *markstack_max; |
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134 | I32 *scopestack; |
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135 | I32 scopestack_ix; |
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136 | I32 scopestack_max; |
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137 | ANY *savestack; |
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138 | I32 savestack_ix; |
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139 | I32 savestack_max; |
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140 | OP **retstack; |
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141 | I32 retstack_ix; |
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142 | I32 retstack_max; |
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143 | PMOP *curpm; |
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144 | COP *curcop; |
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145 | JMPENV *top_env; |
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146 | |
166 | |
147 | /* coro process data */ |
167 | /* coro process data */ |
148 | int prio; |
168 | int prio; |
149 | |
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150 | /* data associated with this coroutine (initial args) */ |
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151 | AV *args; |
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152 | int refcnt; |
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153 | }; |
169 | }; |
154 | |
170 | |
155 | typedef struct coro *Coro__State; |
171 | typedef struct coro *Coro__State; |
156 | typedef struct coro *Coro__State_or_hashref; |
172 | typedef struct coro *Coro__State_or_hashref; |
157 | |
173 | |
158 | static AV * |
174 | static AV * |
159 | coro_clone_padlist (pTHX_ CV *cv) |
175 | coro_clone_padlist (CV *cv) |
160 | { |
176 | { |
161 | AV *padlist = CvPADLIST (cv); |
177 | AV *padlist = CvPADLIST (cv); |
162 | AV *newpadlist, *newpad; |
178 | AV *newpadlist, *newpad; |
163 | |
179 | |
164 | newpadlist = newAV (); |
180 | newpadlist = newAV (); |
165 | AvREAL_off (newpadlist); |
181 | AvREAL_off (newpadlist); |
166 | #if PERL_VERSION < 9 |
182 | #if PERL_VERSION_ATLEAST (5,9,0) |
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183 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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184 | #else |
167 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
185 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
168 | #else |
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169 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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170 | #endif |
186 | #endif |
171 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
187 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
172 | --AvFILLp (padlist); |
188 | --AvFILLp (padlist); |
173 | |
189 | |
174 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
190 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
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176 | |
192 | |
177 | return newpadlist; |
193 | return newpadlist; |
178 | } |
194 | } |
179 | |
195 | |
180 | static void |
196 | static void |
181 | free_padlist (pTHX_ AV *padlist) |
197 | free_padlist (AV *padlist) |
182 | { |
198 | { |
183 | /* may be during global destruction */ |
199 | /* may be during global destruction */ |
184 | if (SvREFCNT (padlist)) |
200 | if (SvREFCNT (padlist)) |
185 | { |
201 | { |
186 | I32 i = AvFILLp (padlist); |
202 | I32 i = AvFILLp (padlist); |
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207 | AV *padlist; |
223 | AV *padlist; |
208 | AV *av = (AV *)mg->mg_obj; |
224 | AV *av = (AV *)mg->mg_obj; |
209 | |
225 | |
210 | /* casting is fun. */ |
226 | /* casting is fun. */ |
211 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
227 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
212 | free_padlist (aTHX_ padlist); |
228 | free_padlist (padlist); |
213 | |
229 | |
214 | SvREFCNT_dec (av); |
230 | SvREFCNT_dec (av); |
215 | |
231 | |
216 | return 0; |
232 | return 0; |
217 | } |
233 | } |
218 | |
234 | |
219 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
235 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
220 | |
236 | |
221 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
237 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
222 | |
238 | |
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239 | #define CORO_MAGIC(cv) \ |
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240 | SvMAGIC (cv) \ |
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241 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
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242 | ? SvMAGIC (cv) \ |
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243 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
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244 | : 0 |
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245 | |
223 | /* the next two functions merely cache the padlists */ |
246 | /* the next two functions merely cache the padlists */ |
224 | static void |
247 | static void |
225 | get_padlist (pTHX_ CV *cv) |
248 | get_padlist (CV *cv) |
226 | { |
249 | { |
227 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
250 | MAGIC *mg = CORO_MAGIC (cv); |
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251 | AV *av; |
228 | |
252 | |
229 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
253 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
230 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
254 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
231 | else |
255 | else |
232 | { |
256 | { |
233 | #if 0 |
257 | #if 0 |
234 | /* this should work - but it doesn't :( */ |
258 | /* this is probably cleaner, but also slower? */ |
235 | CV *cp = Perl_cv_clone (aTHX_ cv); |
259 | CV *cp = Perl_cv_clone (cv); |
236 | CvPADLIST (cv) = CvPADLIST (cp); |
260 | CvPADLIST (cv) = CvPADLIST (cp); |
237 | CvPADLIST (cp) = 0; |
261 | CvPADLIST (cp) = 0; |
238 | SvREFCNT_dec (cp); |
262 | SvREFCNT_dec (cp); |
239 | #else |
263 | #else |
240 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
264 | CvPADLIST (cv) = coro_clone_padlist (cv); |
241 | #endif |
265 | #endif |
242 | } |
266 | } |
243 | } |
267 | } |
244 | |
268 | |
245 | static void |
269 | static void |
246 | put_padlist (pTHX_ CV *cv) |
270 | put_padlist (CV *cv) |
247 | { |
271 | { |
248 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
272 | MAGIC *mg = CORO_MAGIC (cv); |
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273 | AV *av; |
249 | |
274 | |
250 | if (!mg) |
275 | if (!mg) |
251 | { |
276 | { |
252 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
277 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
253 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
278 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
254 | mg->mg_virtual = &vtbl_coro; |
279 | mg->mg_virtual = &vtbl_coro; |
255 | mg->mg_obj = (SV *)newAV (); |
280 | mg->mg_obj = (SV *)newAV (); |
256 | } |
281 | } |
257 | |
282 | |
258 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
283 | av = (AV *)mg->mg_obj; |
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284 | |
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285 | if (AvFILLp (av) >= AvMAX (av)) |
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286 | av_extend (av, AvMAX (av) + 1); |
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287 | |
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288 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
259 | } |
289 | } |
260 | |
290 | |
261 | #define SB do { |
291 | #define SB do { |
262 | #define SE } while (0) |
292 | #define SE } while (0) |
263 | |
293 | |
264 | #define LOAD(state) load_state(aTHX_ (state)); |
294 | #define LOAD(state) load_state ((state)) |
265 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
295 | #define SAVE(state,flags) save_state ((state),(flags)) |
266 | |
296 | |
267 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
297 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
268 | |
298 | |
269 | static void |
299 | static void |
270 | load_state(pTHX_ Coro__State c) |
300 | load_state (Coro__State c) |
271 | { |
301 | { |
272 | PL_dowarn = c->dowarn; |
302 | #define VAR(name,type) PL_ ## name = c->name; |
273 | PL_in_eval = c->in_eval; |
303 | # include "state.h" |
274 | |
304 | #undef VAR |
275 | PL_curstackinfo = c->curstackinfo; |
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276 | PL_curstack = c->curstack; |
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277 | PL_mainstack = c->mainstack; |
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278 | PL_stack_sp = c->stack_sp; |
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279 | PL_op = c->op; |
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280 | PL_curpad = c->curpad; |
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281 | PL_comppad = c->comppad; |
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282 | PL_compcv = c->compcv; |
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283 | PL_stack_base = c->stack_base; |
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284 | PL_stack_max = c->stack_max; |
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285 | PL_tmps_stack = c->tmps_stack; |
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286 | PL_tmps_floor = c->tmps_floor; |
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287 | PL_tmps_ix = c->tmps_ix; |
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288 | PL_tmps_max = c->tmps_max; |
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289 | PL_markstack = c->markstack; |
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290 | PL_markstack_ptr = c->markstack_ptr; |
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291 | PL_markstack_max = c->markstack_max; |
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292 | PL_scopestack = c->scopestack; |
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293 | PL_scopestack_ix = c->scopestack_ix; |
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294 | PL_scopestack_max = c->scopestack_max; |
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295 | PL_savestack = c->savestack; |
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296 | PL_savestack_ix = c->savestack_ix; |
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297 | PL_savestack_max = c->savestack_max; |
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298 | #if PERL_VERSION < 9 |
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299 | PL_retstack = c->retstack; |
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300 | PL_retstack_ix = c->retstack_ix; |
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301 | PL_retstack_max = c->retstack_max; |
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302 | #endif |
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303 | PL_curpm = c->curpm; |
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304 | PL_curcop = c->curcop; |
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305 | PL_top_env = c->top_env; |
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306 | |
305 | |
307 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
306 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
308 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
307 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
309 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
308 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
310 | |
309 | |
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313 | CV *cv; |
312 | CV *cv; |
314 | |
313 | |
315 | /* now do the ugly restore mess */ |
314 | /* now do the ugly restore mess */ |
316 | while ((cv = (CV *)POPs)) |
315 | while ((cv = (CV *)POPs)) |
317 | { |
316 | { |
318 | AV *padlist = (AV *)POPs; |
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319 | |
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320 | if (padlist) |
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321 | { |
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322 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
317 | put_padlist (cv); /* mark this padlist as available */ |
323 | CvPADLIST(cv) = padlist; |
318 | CvDEPTH (cv) = PTR2IV (POPs); |
324 | } |
319 | CvPADLIST (cv) = (AV *)POPs; |
325 | |
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326 | ++CvDEPTH(cv); |
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327 | } |
320 | } |
328 | |
321 | |
329 | PUTBACK; |
322 | PUTBACK; |
330 | } |
323 | } |
331 | } |
324 | } |
332 | |
325 | |
333 | static void |
326 | static void |
334 | save_state(pTHX_ Coro__State c, int flags) |
327 | save_state (Coro__State c, int flags) |
335 | { |
328 | { |
336 | { |
329 | { |
337 | dSP; |
330 | dSP; |
338 | I32 cxix = cxstack_ix; |
331 | I32 cxix = cxstack_ix; |
339 | PERL_CONTEXT *ccstk = cxstack; |
332 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
350 | { |
343 | { |
351 | while (cxix >= 0) |
344 | while (cxix >= 0) |
352 | { |
345 | { |
353 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
346 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
354 | |
347 | |
355 | if (CxTYPE(cx) == CXt_SUB) |
348 | if (CxTYPE (cx) == CXt_SUB) |
356 | { |
349 | { |
357 | CV *cv = cx->blk_sub.cv; |
350 | CV *cv = cx->blk_sub.cv; |
|
|
351 | |
358 | if (CvDEPTH(cv)) |
352 | if (CvDEPTH (cv)) |
359 | { |
353 | { |
360 | EXTEND (SP, CvDEPTH(cv)*2); |
354 | EXTEND (SP, 3); |
361 | |
355 | |
362 | while (--CvDEPTH(cv)) |
|
|
363 | { |
|
|
364 | /* this tells the restore code to increment CvDEPTH */ |
|
|
365 | PUSHs (Nullsv); |
|
|
366 | PUSHs ((SV *)cv); |
|
|
367 | } |
|
|
368 | |
|
|
369 | PUSHs ((SV *)CvPADLIST(cv)); |
356 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
357 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
370 | PUSHs ((SV *)cv); |
358 | PUSHs ((SV *)cv); |
371 | |
359 | |
|
|
360 | CvDEPTH (cv) = 0; |
372 | get_padlist (aTHX_ cv); |
361 | get_padlist (cv); |
373 | } |
362 | } |
374 | } |
363 | } |
375 | #ifdef CXt_FORMAT |
364 | #ifdef CXt_FORMAT |
376 | else if (CxTYPE(cx) == CXt_FORMAT) |
365 | else if (CxTYPE (cx) == CXt_FORMAT) |
377 | { |
366 | { |
378 | /* I never used formats, so how should I know how these are implemented? */ |
367 | /* I never used formats, so how should I know how these are implemented? */ |
379 | /* my bold guess is as a simple, plain sub... */ |
368 | /* my bold guess is as a simple, plain sub... */ |
380 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
369 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
381 | } |
370 | } |
… | |
… | |
395 | |
384 | |
396 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
385 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
397 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
386 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
398 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
387 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
399 | |
388 | |
400 | c->dowarn = PL_dowarn; |
389 | #define VAR(name,type)c->name = PL_ ## name; |
401 | c->in_eval = PL_in_eval; |
390 | # include "state.h" |
402 | |
391 | #undef VAR |
403 | c->curstackinfo = PL_curstackinfo; |
|
|
404 | c->curstack = PL_curstack; |
|
|
405 | c->mainstack = PL_mainstack; |
|
|
406 | c->stack_sp = PL_stack_sp; |
|
|
407 | c->op = PL_op; |
|
|
408 | c->curpad = PL_curpad; |
|
|
409 | c->comppad = PL_comppad; |
|
|
410 | c->compcv = PL_compcv; |
|
|
411 | c->stack_base = PL_stack_base; |
|
|
412 | c->stack_max = PL_stack_max; |
|
|
413 | c->tmps_stack = PL_tmps_stack; |
|
|
414 | c->tmps_floor = PL_tmps_floor; |
|
|
415 | c->tmps_ix = PL_tmps_ix; |
|
|
416 | c->tmps_max = PL_tmps_max; |
|
|
417 | c->markstack = PL_markstack; |
|
|
418 | c->markstack_ptr = PL_markstack_ptr; |
|
|
419 | c->markstack_max = PL_markstack_max; |
|
|
420 | c->scopestack = PL_scopestack; |
|
|
421 | c->scopestack_ix = PL_scopestack_ix; |
|
|
422 | c->scopestack_max = PL_scopestack_max; |
|
|
423 | c->savestack = PL_savestack; |
|
|
424 | c->savestack_ix = PL_savestack_ix; |
|
|
425 | c->savestack_max = PL_savestack_max; |
|
|
426 | #if PERL_VERSION < 9 |
|
|
427 | c->retstack = PL_retstack; |
|
|
428 | c->retstack_ix = PL_retstack_ix; |
|
|
429 | c->retstack_max = PL_retstack_max; |
|
|
430 | #endif |
|
|
431 | c->curpm = PL_curpm; |
|
|
432 | c->curcop = PL_curcop; |
|
|
433 | c->top_env = PL_top_env; |
|
|
434 | } |
392 | } |
435 | |
393 | |
436 | /* |
394 | /* |
437 | * allocate various perl stacks. This is an exact copy |
395 | * allocate various perl stacks. This is an exact copy |
438 | * of perl.c:init_stacks, except that it uses less memory |
396 | * of perl.c:init_stacks, except that it uses less memory |
439 | * on the (sometimes correct) assumption that coroutines do |
397 | * on the (sometimes correct) assumption that coroutines do |
440 | * not usually need a lot of stackspace. |
398 | * not usually need a lot of stackspace. |
441 | */ |
399 | */ |
442 | static void |
400 | static void |
443 | coro_init_stacks (pTHX) |
401 | coro_init_stacks () |
444 | { |
402 | { |
445 | LOCK; |
|
|
446 | |
|
|
447 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
403 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
448 | PL_curstackinfo->si_type = PERLSI_MAIN; |
404 | PL_curstackinfo->si_type = PERLSI_MAIN; |
449 | PL_curstack = PL_curstackinfo->si_stack; |
405 | PL_curstack = PL_curstackinfo->si_stack; |
450 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
406 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
451 | |
407 | |
452 | PL_stack_base = AvARRAY(PL_curstack); |
408 | PL_stack_base = AvARRAY(PL_curstack); |
453 | PL_stack_sp = PL_stack_base; |
409 | PL_stack_sp = PL_stack_base; |
454 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
410 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
455 | |
411 | |
456 | New(50,PL_tmps_stack,96,SV*); |
412 | New(50,PL_tmps_stack,128,SV*); |
457 | PL_tmps_floor = -1; |
413 | PL_tmps_floor = -1; |
458 | PL_tmps_ix = -1; |
414 | PL_tmps_ix = -1; |
459 | PL_tmps_max = 96; |
415 | PL_tmps_max = 128; |
460 | |
416 | |
461 | New(54,PL_markstack,16,I32); |
417 | New(54,PL_markstack,32,I32); |
462 | PL_markstack_ptr = PL_markstack; |
418 | PL_markstack_ptr = PL_markstack; |
463 | PL_markstack_max = PL_markstack + 16; |
419 | PL_markstack_max = PL_markstack + 32; |
464 | |
420 | |
465 | #ifdef SET_MARK_OFFSET |
421 | #ifdef SET_MARK_OFFSET |
466 | SET_MARK_OFFSET; |
422 | SET_MARK_OFFSET; |
467 | #endif |
423 | #endif |
468 | |
424 | |
469 | New(54,PL_scopestack,16,I32); |
425 | New(54,PL_scopestack,32,I32); |
470 | PL_scopestack_ix = 0; |
426 | PL_scopestack_ix = 0; |
471 | PL_scopestack_max = 16; |
427 | PL_scopestack_max = 32; |
472 | |
428 | |
473 | New(54,PL_savestack,96,ANY); |
429 | New(54,PL_savestack,64,ANY); |
474 | PL_savestack_ix = 0; |
430 | PL_savestack_ix = 0; |
475 | PL_savestack_max = 96; |
431 | PL_savestack_max = 64; |
476 | |
432 | |
477 | #if PERL_VERSION < 9 |
433 | #if !PERL_VERSION_ATLEAST (5,9,0) |
478 | New(54,PL_retstack,8,OP*); |
434 | New(54,PL_retstack,16,OP*); |
479 | PL_retstack_ix = 0; |
435 | PL_retstack_ix = 0; |
480 | PL_retstack_max = 8; |
436 | PL_retstack_max = 16; |
481 | #endif |
437 | #endif |
482 | |
|
|
483 | UNLOCK; |
|
|
484 | } |
438 | } |
485 | |
439 | |
486 | /* |
440 | /* |
487 | * destroy the stacks, the callchain etc... |
441 | * destroy the stacks, the callchain etc... |
488 | */ |
442 | */ |
489 | static void |
443 | static void |
490 | destroy_stacks(pTHX) |
444 | coro_destroy_stacks () |
491 | { |
445 | { |
492 | if (!IN_DESTRUCT) |
446 | if (!IN_DESTRUCT) |
493 | { |
447 | { |
494 | /* is this ugly, I ask? */ |
448 | /* is this ugly, I ask? */ |
495 | LEAVE_SCOPE (0); |
449 | LEAVE_SCOPE (0); |
… | |
… | |
526 | |
480 | |
527 | Safefree (PL_tmps_stack); |
481 | Safefree (PL_tmps_stack); |
528 | Safefree (PL_markstack); |
482 | Safefree (PL_markstack); |
529 | Safefree (PL_scopestack); |
483 | Safefree (PL_scopestack); |
530 | Safefree (PL_savestack); |
484 | Safefree (PL_savestack); |
531 | #if PERL_VERSION < 9 |
485 | #if !PERL_VERSION_ATLEAST (5,9,0) |
532 | Safefree (PL_retstack); |
486 | Safefree (PL_retstack); |
533 | #endif |
487 | #endif |
534 | } |
488 | } |
535 | |
489 | |
536 | static void |
490 | static void |
537 | setup_coro (struct coro *coro) |
491 | setup_coro (struct coro *coro) |
538 | { |
492 | { |
539 | /* |
493 | /* |
540 | * emulate part of the perl startup here. |
494 | * emulate part of the perl startup here. |
541 | */ |
495 | */ |
542 | dTHX; |
|
|
543 | dSP; |
|
|
544 | UNOP myop; |
|
|
545 | SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
|
|
546 | |
496 | |
547 | coro_init_stacks (aTHX); |
497 | coro_init_stacks (); |
548 | /*PL_curcop = 0;*/ |
498 | |
549 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
499 | PL_curcop = &PL_compiling; |
|
|
500 | PL_in_eval = EVAL_NULL; |
|
|
501 | PL_curpm = 0; |
|
|
502 | PL_localizing = 0; |
|
|
503 | PL_dirty = 0; |
|
|
504 | PL_restartop = 0; |
|
|
505 | |
|
|
506 | { |
|
|
507 | dSP; |
|
|
508 | LOGOP myop; |
|
|
509 | |
550 | SvREFCNT_dec (GvAV (PL_defgv)); |
510 | SvREFCNT_dec (GvAV (PL_defgv)); |
551 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
511 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
552 | |
512 | |
553 | SPAGAIN; |
|
|
554 | |
|
|
555 | Zero (&myop, 1, UNOP); |
513 | Zero (&myop, 1, LOGOP); |
556 | myop.op_next = Nullop; |
514 | myop.op_next = Nullop; |
557 | myop.op_flags = OPf_WANT_VOID; |
515 | myop.op_flags = OPf_WANT_VOID; |
558 | |
516 | |
|
|
517 | PUSHMARK (SP); |
|
|
518 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
|
|
519 | PUTBACK; |
559 | PL_op = (OP *)&myop; |
520 | PL_op = (OP *)&myop; |
560 | |
|
|
561 | PUSHMARK(SP); |
|
|
562 | XPUSHs (sub_init); |
|
|
563 | PUTBACK; |
|
|
564 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
521 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
565 | SPAGAIN; |
522 | SPAGAIN; |
|
|
523 | } |
566 | |
524 | |
567 | ENTER; /* necessary e.g. for dounwind */ |
525 | ENTER; /* necessary e.g. for dounwind */ |
568 | } |
526 | } |
569 | |
527 | |
570 | static void |
528 | static void |
571 | transfer_tail () |
529 | free_coro_mortal () |
572 | { |
530 | { |
573 | if (coro_mortal) |
531 | if (coro_mortal) |
574 | { |
532 | { |
575 | SvREFCNT_dec (coro_mortal); |
533 | SvREFCNT_dec (coro_mortal); |
576 | coro_mortal = 0; |
534 | coro_mortal = 0; |
577 | } |
535 | } |
|
|
536 | } |
578 | |
537 | |
|
|
538 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
539 | static void NOINLINE |
|
|
540 | prepare_cctx (coro_cctx *cctx) |
|
|
541 | { |
|
|
542 | dSP; |
|
|
543 | LOGOP myop; |
|
|
544 | |
|
|
545 | Zero (&myop, 1, LOGOP); |
|
|
546 | myop.op_next = PL_op; |
|
|
547 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
|
|
548 | |
|
|
549 | PUSHMARK (SP); |
|
|
550 | EXTEND (SP, 2); |
|
|
551 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
552 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
553 | PUTBACK; |
|
|
554 | PL_op = (OP *)&myop; |
|
|
555 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
556 | SPAGAIN; |
|
|
557 | } |
|
|
558 | |
|
|
559 | static void |
|
|
560 | coro_run (void *arg) |
|
|
561 | { |
|
|
562 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
579 | UNLOCK; |
563 | UNLOCK; |
580 | } |
|
|
581 | |
564 | |
582 | static void |
|
|
583 | coro_run (void *arg) |
|
|
584 | { |
|
|
585 | /* |
565 | /* |
586 | * this is a _very_ stripped down perl interpreter ;) |
566 | * this is a _very_ stripped down perl interpreter ;) |
587 | */ |
567 | */ |
588 | dTHX; |
|
|
589 | |
|
|
590 | transfer_tail (); |
|
|
591 | |
|
|
592 | PL_top_env = &PL_start_env; |
568 | PL_top_env = &PL_start_env; |
593 | PL_restartop = PL_op->op_next; |
569 | |
|
|
570 | /* inject call to cctx_init */ |
|
|
571 | prepare_cctx ((coro_cctx *)arg); |
|
|
572 | |
594 | /* somebody will hit me for both perl_run and PL_restart_top */ |
573 | /* somebody will hit me for both perl_run and PL_restartop */ |
595 | perl_run (aTHX_ PERL_GET_CONTEXT); |
574 | PL_restartop = PL_op; |
|
|
575 | perl_run (PL_curinterp); |
596 | |
576 | |
|
|
577 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
597 | abort (); |
578 | abort (); |
598 | } |
579 | } |
599 | |
580 | |
600 | static coro_stack * |
581 | static coro_cctx * |
601 | stack_new () |
582 | cctx_new () |
602 | { |
583 | { |
603 | coro_stack *stack; |
584 | coro_cctx *cctx; |
604 | |
585 | |
|
|
586 | ++cctx_count; |
|
|
587 | |
605 | New (0, stack, 1, coro_stack); |
588 | New (0, cctx, 1, coro_cctx); |
606 | |
589 | |
607 | #if HAVE_MMAP |
590 | #if HAVE_MMAP |
608 | |
591 | |
609 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ |
592 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
|
|
593 | /* mmap supposedly does allocate-on-write for us */ |
610 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
594 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
611 | |
595 | |
612 | if (stack->sptr == (void *)-1) |
596 | if (cctx->sptr == (void *)-1) |
613 | { |
597 | { |
614 | fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n"); |
598 | perror ("FATAL: unable to mmap stack for coroutine"); |
615 | _exit (EXIT_FAILURE); |
599 | _exit (EXIT_FAILURE); |
616 | } |
600 | } |
617 | |
601 | |
|
|
602 | # if STACKGUARD |
618 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
603 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
604 | # endif |
619 | |
605 | |
620 | #else |
606 | #else |
621 | |
607 | |
622 | stack->ssize = STACKSIZE * (long)sizeof (long); |
608 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
623 | New (0, stack->sptr, STACKSIZE, long); |
609 | New (0, cctx->sptr, STACKSIZE, long); |
624 | |
610 | |
625 | if (!stack->sptr) |
611 | if (!cctx->sptr) |
626 | { |
612 | { |
627 | fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n"); |
613 | perror ("FATAL: unable to malloc stack for coroutine"); |
628 | _exit (EXIT_FAILURE); |
614 | _exit (EXIT_FAILURE); |
629 | } |
615 | } |
630 | |
616 | |
631 | #endif |
617 | #endif |
632 | |
618 | |
|
|
619 | #if USE_VALGRIND |
|
|
620 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
|
|
621 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
622 | cctx->ssize + (char *)cctx->sptr |
|
|
623 | ); |
|
|
624 | #endif |
|
|
625 | |
633 | coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize); |
626 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
634 | |
627 | |
635 | return stack; |
628 | return cctx; |
636 | } |
629 | } |
637 | |
630 | |
638 | static void |
631 | static void |
639 | stack_free (coro_stack *stack) |
632 | cctx_destroy (coro_cctx *cctx) |
640 | { |
633 | { |
641 | if (!stack || stack == main_stack) |
634 | if (!cctx) |
642 | return; |
635 | return; |
643 | |
636 | |
|
|
637 | --cctx_count; |
|
|
638 | |
|
|
639 | #if USE_VALGRIND |
|
|
640 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
641 | #endif |
|
|
642 | |
644 | #if HAVE_MMAP |
643 | #if HAVE_MMAP |
645 | munmap (stack->sptr, stack->ssize); |
644 | munmap (cctx->sptr, cctx->ssize); |
646 | #else |
645 | #else |
647 | Safefree (stack->sptr); |
646 | Safefree (cctx->sptr); |
648 | #endif |
647 | #endif |
649 | |
648 | |
650 | Safefree (stack); |
649 | Safefree (cctx); |
651 | } |
650 | } |
652 | |
651 | |
653 | static coro_stack *stack_first; |
652 | static coro_cctx * |
654 | |
653 | cctx_get () |
655 | static void |
|
|
656 | stack_get (struct coro *coro) |
|
|
657 | { |
654 | { |
|
|
655 | coro_cctx *cctx; |
|
|
656 | |
658 | if (stack_first) |
657 | if (cctx_first) |
659 | { |
658 | { |
660 | coro->stack = stack_first; |
659 | cctx = cctx_first; |
661 | stack_first = stack_first->next; |
660 | cctx_first = cctx->next; |
|
|
661 | --cctx_idle; |
662 | } |
662 | } |
663 | else |
663 | else |
664 | coro->stack = stack_new (); |
664 | { |
665 | } |
665 | cctx = cctx_new (); |
|
|
666 | PL_op = PL_op->op_next; |
|
|
667 | } |
666 | |
668 | |
|
|
669 | return cctx; |
|
|
670 | } |
|
|
671 | |
667 | static void |
672 | static void |
668 | stack_put (coro_stack *stack) |
673 | cctx_put (coro_cctx *cctx) |
669 | { |
674 | { |
670 | stack->next = stack_first; |
675 | /* free another cctx if overlimit */ |
671 | stack_first = stack; |
676 | if (cctx_idle >= MAX_IDLE_CCTX) |
|
|
677 | { |
|
|
678 | coro_cctx *first = cctx_first; |
|
|
679 | cctx_first = first->next; |
|
|
680 | --cctx_idle; |
|
|
681 | |
|
|
682 | assert (!first->inuse); |
|
|
683 | cctx_destroy (first); |
|
|
684 | } |
|
|
685 | |
|
|
686 | ++cctx_idle; |
|
|
687 | cctx->next = cctx_first; |
|
|
688 | cctx_first = cctx; |
672 | } |
689 | } |
673 | |
690 | |
674 | /* never call directly, always through the coro_state_transfer global variable */ |
691 | /* never call directly, always through the coro_state_transfer global variable */ |
675 | static void |
692 | static void NOINLINE |
676 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
693 | transfer (struct coro *prev, struct coro *next, int flags) |
677 | { |
694 | { |
678 | dSTACKLEVEL; |
695 | dSTACKLEVEL; |
679 | |
696 | |
680 | /* sometimes transfer is only called to set idle_sp */ |
697 | /* sometimes transfer is only called to set idle_sp */ |
681 | if (!prev->stack->idle_sp) |
698 | if (flags == TRANSFER_SET_STACKLEVEL) |
682 | prev->stack->idle_sp = stacklevel; |
699 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
683 | |
|
|
684 | LOCK; |
|
|
685 | |
|
|
686 | if (prev != next) |
700 | else if (prev != next) |
687 | { |
701 | { |
688 | coro_stack *prev_stack = prev->stack; |
702 | coro_cctx *prev__cctx; |
689 | |
703 | |
690 | /* possibly "free" the stack */ |
704 | if (prev->flags & CF_NEW) |
691 | if (prev_stack->idle_sp == stacklevel) |
|
|
692 | { |
705 | { |
693 | stack_put (prev_stack); |
706 | /* create a new empty context */ |
694 | prev->stack = 0; |
707 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
708 | prev->cctx->inuse = 1; |
|
|
709 | prev->flags &= ~CF_NEW; |
|
|
710 | prev->flags |= CF_RUNNING; |
695 | } |
711 | } |
696 | |
712 | |
697 | if (next->mainstack) |
713 | /*TODO: must not croak here */ |
|
|
714 | if (!prev->flags & CF_RUNNING) |
|
|
715 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
716 | |
|
|
717 | if (next->flags & CF_RUNNING) |
|
|
718 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
719 | |
|
|
720 | prev->flags &= ~CF_RUNNING; |
|
|
721 | next->flags |= CF_RUNNING; |
|
|
722 | |
|
|
723 | LOCK; |
|
|
724 | |
|
|
725 | if (next->flags & CF_NEW) |
|
|
726 | { |
|
|
727 | /* need to start coroutine */ |
|
|
728 | next->flags &= ~CF_NEW; |
|
|
729 | /* first get rid of the old state */ |
|
|
730 | SAVE (prev, -1); |
|
|
731 | /* setup coroutine call */ |
|
|
732 | setup_coro (next); |
|
|
733 | /* need a new stack */ |
|
|
734 | assert (!next->stack); |
|
|
735 | } |
|
|
736 | else |
698 | { |
737 | { |
699 | /* coroutine already started */ |
738 | /* coroutine already started */ |
700 | SAVE (prev, flags); |
739 | SAVE (prev, flags); |
701 | LOAD (next); |
740 | LOAD (next); |
702 | } |
741 | } |
703 | else |
742 | |
|
|
743 | prev__cctx = prev->cctx; |
|
|
744 | |
|
|
745 | /* possibly "free" the cctx */ |
|
|
746 | if (prev__cctx->idle_sp == STACKLEVEL) |
704 | { |
747 | { |
705 | /* need to start coroutine */ |
748 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
706 | /* first get rid of the old state */ |
749 | assert (PL_top_env == prev__cctx->top_env); |
707 | SAVE (prev, -1); |
750 | |
708 | /* setup coroutine call */ |
751 | prev->cctx = 0; |
709 | setup_coro (next); |
752 | |
710 | /* need to change stack from main_stack to real one */ |
753 | cctx_put (prev__cctx); |
711 | next->stack = 0; |
754 | prev__cctx->inuse = 0; |
712 | } |
755 | } |
713 | |
756 | |
714 | if (!next->stack) |
757 | if (!next->cctx) |
715 | stack_get (next); |
758 | { |
|
|
759 | next->cctx = cctx_get (); |
|
|
760 | assert (!next->cctx->inuse); |
|
|
761 | next->cctx->inuse = 1; |
|
|
762 | } |
716 | |
763 | |
717 | if (prev_stack != next->stack) |
764 | if (prev__cctx != next->cctx) |
|
|
765 | { |
|
|
766 | prev__cctx->top_env = PL_top_env; |
|
|
767 | PL_top_env = next->cctx->top_env; |
718 | coro_transfer (&prev_stack->cctx, &next->stack->cctx); |
768 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
769 | } |
|
|
770 | |
|
|
771 | free_coro_mortal (); |
|
|
772 | |
|
|
773 | UNLOCK; |
719 | } |
774 | } |
720 | |
|
|
721 | transfer_tail (); |
|
|
722 | } |
775 | } |
723 | |
776 | |
724 | /* use this function pointer to call the above function */ |
777 | struct transfer_args |
725 | /* this is done to increase chances of the compiler not inlining the call */ |
778 | { |
726 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
779 | struct coro *prev, *next; |
|
|
780 | int flags; |
|
|
781 | }; |
|
|
782 | |
|
|
783 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags) |
727 | |
784 | |
728 | static void |
785 | static void |
729 | coro_state_destroy (struct coro *coro) |
786 | coro_state_destroy (struct coro *coro) |
730 | { |
787 | { |
731 | if (coro->refcnt--) |
788 | if (coro->refcnt--) |
… | |
… | |
733 | |
790 | |
734 | if (coro->mainstack && coro->mainstack != main_mainstack) |
791 | if (coro->mainstack && coro->mainstack != main_mainstack) |
735 | { |
792 | { |
736 | struct coro temp; |
793 | struct coro temp; |
737 | |
794 | |
|
|
795 | if (coro->flags & CF_RUNNING) |
|
|
796 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
797 | |
738 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
798 | SAVE ((&temp), TRANSFER_SAVE_ALL); |
739 | LOAD (aTHX_ coro); |
799 | LOAD (coro); |
740 | |
800 | |
741 | destroy_stacks (aTHX); |
801 | coro_destroy_stacks (); |
742 | |
802 | |
743 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
803 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
744 | |
804 | |
745 | coro->mainstack = 0; |
805 | coro->mainstack = 0; |
746 | } |
806 | } |
747 | |
807 | |
748 | stack_free (coro->stack); |
808 | cctx_destroy (coro->cctx); |
749 | SvREFCNT_dec (coro->args); |
809 | SvREFCNT_dec (coro->args); |
750 | Safefree (coro); |
810 | Safefree (coro); |
751 | } |
811 | } |
752 | |
812 | |
753 | static int |
813 | static int |
754 | coro_state_clear (SV *sv, MAGIC *mg) |
814 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
755 | { |
815 | { |
756 | struct coro *coro = (struct coro *)mg->mg_ptr; |
816 | struct coro *coro = (struct coro *)mg->mg_ptr; |
757 | mg->mg_ptr = 0; |
817 | mg->mg_ptr = 0; |
758 | |
818 | |
759 | coro_state_destroy (coro); |
819 | coro_state_destroy (coro); |
760 | |
820 | |
761 | return 0; |
821 | return 0; |
762 | } |
822 | } |
763 | |
823 | |
764 | static int |
824 | static int |
765 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
825 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
766 | { |
826 | { |
767 | struct coro *coro = (struct coro *)mg->mg_ptr; |
827 | struct coro *coro = (struct coro *)mg->mg_ptr; |
768 | |
828 | |
769 | ++coro->refcnt; |
829 | ++coro->refcnt; |
770 | |
830 | |
771 | return 0; |
831 | return 0; |
772 | } |
832 | } |
773 | |
833 | |
774 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
834 | static MGVTBL coro_state_vtbl = { |
|
|
835 | 0, 0, 0, 0, |
|
|
836 | coro_state_clear, |
|
|
837 | 0, |
|
|
838 | #ifdef MGf_DUP |
|
|
839 | coro_state_dup, |
|
|
840 | #else |
|
|
841 | # define MGf_DUP 0 |
|
|
842 | #endif |
|
|
843 | }; |
775 | |
844 | |
776 | static struct coro * |
845 | static struct coro * |
777 | SvSTATE (SV *coro) |
846 | SvSTATE (SV *coro) |
778 | { |
847 | { |
779 | HV *stash; |
848 | HV *stash; |
… | |
… | |
794 | assert (mg->mg_type == PERL_MAGIC_ext); |
863 | assert (mg->mg_type == PERL_MAGIC_ext); |
795 | return (struct coro *)mg->mg_ptr; |
864 | return (struct coro *)mg->mg_ptr; |
796 | } |
865 | } |
797 | |
866 | |
798 | static void |
867 | static void |
|
|
868 | prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags) |
|
|
869 | { |
|
|
870 | ta->prev = SvSTATE (prev); |
|
|
871 | ta->next = SvSTATE (next); |
|
|
872 | ta->flags = flags; |
|
|
873 | } |
|
|
874 | |
|
|
875 | static void |
799 | api_transfer (pTHX_ SV *prev, SV *next, int flags) |
876 | api_transfer (SV *prev, SV *next, int flags) |
800 | { |
877 | { |
801 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
878 | struct transfer_args ta; |
|
|
879 | |
|
|
880 | prepare_transfer (&ta, prev, next, flags); |
|
|
881 | TRANSFER (ta); |
802 | } |
882 | } |
803 | |
883 | |
804 | /** Coro ********************************************************************/ |
884 | /** Coro ********************************************************************/ |
805 | |
885 | |
806 | #define PRIO_MAX 3 |
886 | #define PRIO_MAX 3 |
… | |
… | |
809 | #define PRIO_LOW -1 |
889 | #define PRIO_LOW -1 |
810 | #define PRIO_IDLE -3 |
890 | #define PRIO_IDLE -3 |
811 | #define PRIO_MIN -4 |
891 | #define PRIO_MIN -4 |
812 | |
892 | |
813 | /* for Coro.pm */ |
893 | /* for Coro.pm */ |
814 | static GV *coro_current, *coro_idle; |
894 | static SV *coro_current; |
815 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
895 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
816 | static int coro_nready; |
896 | static int coro_nready; |
817 | |
897 | |
818 | static void |
898 | static void |
819 | coro_enq (pTHX_ SV *sv) |
899 | coro_enq (SV *coro_sv) |
820 | { |
900 | { |
821 | int prio; |
|
|
822 | |
|
|
823 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
824 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
825 | |
|
|
826 | prio = SvSTATE (sv)->prio; |
|
|
827 | |
|
|
828 | av_push (coro_ready [prio - PRIO_MIN], sv); |
901 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
829 | coro_nready++; |
902 | coro_nready++; |
830 | } |
903 | } |
831 | |
904 | |
832 | static SV * |
905 | static SV * |
833 | coro_deq (pTHX_ int min_prio) |
906 | coro_deq (int min_prio) |
834 | { |
907 | { |
835 | int prio = PRIO_MAX - PRIO_MIN; |
908 | int prio = PRIO_MAX - PRIO_MIN; |
836 | |
909 | |
837 | min_prio -= PRIO_MIN; |
910 | min_prio -= PRIO_MIN; |
838 | if (min_prio < 0) |
911 | if (min_prio < 0) |
… | |
… | |
846 | } |
919 | } |
847 | |
920 | |
848 | return 0; |
921 | return 0; |
849 | } |
922 | } |
850 | |
923 | |
851 | static void |
924 | static int |
852 | api_ready (SV *coro) |
925 | api_ready (SV *coro_sv) |
853 | { |
926 | { |
854 | dTHX; |
927 | struct coro *coro; |
855 | |
928 | |
856 | if (SvROK (coro)) |
929 | if (SvROK (coro_sv)) |
857 | coro = SvRV (coro); |
930 | coro_sv = SvRV (coro_sv); |
|
|
931 | |
|
|
932 | coro = SvSTATE (coro_sv); |
|
|
933 | |
|
|
934 | if (coro->flags & CF_READY) |
|
|
935 | return 0; |
|
|
936 | |
|
|
937 | #if 0 /* this is actually harmless */ |
|
|
938 | if (coro->flags & CF_RUNNING) |
|
|
939 | croak ("Coro::ready called on currently running coroutine"); |
|
|
940 | #endif |
|
|
941 | |
|
|
942 | coro->flags |= CF_READY; |
858 | |
943 | |
859 | LOCK; |
944 | LOCK; |
860 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
945 | coro_enq (SvREFCNT_inc (coro_sv)); |
861 | UNLOCK; |
946 | UNLOCK; |
862 | } |
|
|
863 | |
947 | |
|
|
948 | return 1; |
|
|
949 | } |
|
|
950 | |
864 | static void |
951 | static int |
865 | api_schedule (void) |
952 | api_is_ready (SV *coro_sv) |
866 | { |
953 | { |
867 | dTHX; |
954 | return !!SvSTATE (coro_sv)->flags & CF_READY; |
|
|
955 | } |
868 | |
956 | |
|
|
957 | static void |
|
|
958 | prepare_schedule (struct transfer_args *ta) |
|
|
959 | { |
869 | SV *prev, *next; |
960 | SV *prev, *next; |
870 | SV *current = GvSV (coro_current); |
|
|
871 | |
961 | |
872 | for (;;) |
962 | for (;;) |
873 | { |
963 | { |
874 | LOCK; |
964 | LOCK; |
875 | |
|
|
876 | next = coro_deq (aTHX_ PRIO_MIN); |
965 | next = coro_deq (PRIO_MIN); |
|
|
966 | UNLOCK; |
877 | |
967 | |
878 | if (next) |
968 | if (next) |
879 | break; |
969 | break; |
880 | |
970 | |
881 | UNLOCK; |
|
|
882 | |
|
|
883 | { |
971 | { |
884 | dSP; |
972 | dSP; |
885 | |
973 | |
886 | ENTER; |
974 | ENTER; |
887 | SAVETMPS; |
975 | SAVETMPS; |
888 | |
976 | |
889 | PUSHMARK (SP); |
977 | PUSHMARK (SP); |
890 | PUTBACK; |
978 | PUTBACK; |
891 | call_sv (GvSV (coro_idle), G_DISCARD); |
979 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
892 | |
980 | |
893 | FREETMPS; |
981 | FREETMPS; |
894 | LEAVE; |
982 | LEAVE; |
895 | } |
983 | } |
896 | } |
984 | } |
897 | |
985 | |
898 | prev = SvRV (current); |
986 | prev = SvRV (coro_current); |
899 | SvRV (current) = next; |
987 | SvRV_set (coro_current, next); |
900 | |
988 | |
901 | /* free this only after the transfer */ |
989 | /* free this only after the transfer */ |
|
|
990 | LOCK; |
|
|
991 | free_coro_mortal (); |
|
|
992 | UNLOCK; |
902 | coro_mortal = prev; |
993 | coro_mortal = prev; |
903 | |
994 | |
904 | UNLOCK; |
995 | assert (!SvROK(prev));//D |
|
|
996 | assert (!SvROK(next));//D |
905 | |
997 | |
906 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL); |
998 | ta->prev = SvSTATE (prev); |
907 | } |
999 | ta->next = SvSTATE (next); |
|
|
1000 | ta->flags = TRANSFER_SAVE_ALL; |
908 | |
1001 | |
909 | static int coro_cede_self; |
1002 | assert (ta->flags & CF_READY); |
|
|
1003 | ta->next->flags &= ~CF_READY; |
|
|
1004 | } |
|
|
1005 | |
|
|
1006 | static void |
|
|
1007 | prepare_cede (struct transfer_args *ta) |
|
|
1008 | { |
|
|
1009 | api_ready (coro_current); |
|
|
1010 | |
|
|
1011 | prepare_schedule (ta); |
|
|
1012 | } |
|
|
1013 | |
|
|
1014 | static void |
|
|
1015 | api_schedule (void) |
|
|
1016 | { |
|
|
1017 | struct transfer_args ta; |
|
|
1018 | |
|
|
1019 | prepare_schedule (&ta); |
|
|
1020 | TRANSFER (ta); |
|
|
1021 | } |
910 | |
1022 | |
911 | static void |
1023 | static void |
912 | api_cede (void) |
1024 | api_cede (void) |
913 | { |
1025 | { |
914 | dTHX; |
1026 | struct transfer_args ta; |
915 | SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current))); |
|
|
916 | |
1027 | |
917 | LOCK; |
1028 | prepare_cede (&ta); |
918 | |
1029 | TRANSFER (ta); |
919 | if (coro_cede_self) |
|
|
920 | { |
|
|
921 | AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN]; |
|
|
922 | av_unshift (runqueue, 1); |
|
|
923 | av_store (runqueue, 0, current); |
|
|
924 | coro_nready++; |
|
|
925 | coro_cede_self = 0; |
|
|
926 | } |
|
|
927 | else |
|
|
928 | coro_enq (aTHX_ current); |
|
|
929 | |
|
|
930 | UNLOCK; |
|
|
931 | |
|
|
932 | api_schedule (); |
|
|
933 | } |
1030 | } |
934 | |
1031 | |
935 | MODULE = Coro::State PACKAGE = Coro::State |
1032 | MODULE = Coro::State PACKAGE = Coro::State |
936 | |
1033 | |
937 | PROTOTYPES: DISABLE |
1034 | PROTOTYPES: DISABLE |
… | |
… | |
952 | main_mainstack = PL_mainstack; |
1049 | main_mainstack = PL_mainstack; |
953 | |
1050 | |
954 | coroapi.ver = CORO_API_VERSION; |
1051 | coroapi.ver = CORO_API_VERSION; |
955 | coroapi.transfer = api_transfer; |
1052 | coroapi.transfer = api_transfer; |
956 | |
1053 | |
957 | Newz (0, main_stack, 1, coro_stack); |
|
|
958 | main_stack->idle_sp = (void *)-1; |
|
|
959 | |
|
|
960 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1054 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
961 | } |
1055 | } |
962 | |
1056 | |
963 | SV * |
1057 | SV * |
964 | new (char *klass, ...) |
1058 | new (char *klass, ...) |
… | |
… | |
968 | HV *hv; |
1062 | HV *hv; |
969 | int i; |
1063 | int i; |
970 | |
1064 | |
971 | Newz (0, coro, 1, struct coro); |
1065 | Newz (0, coro, 1, struct coro); |
972 | coro->args = newAV (); |
1066 | coro->args = newAV (); |
|
|
1067 | coro->flags = CF_NEW; |
973 | |
1068 | |
974 | hv = newHV (); |
1069 | hv = newHV (); |
975 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1070 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
976 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1071 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
977 | |
1072 | |
978 | av_push (coro->args, newSVsv (RETVAL)); |
|
|
979 | for (i = 1; i < items; i++) |
1073 | for (i = 1; i < items; i++) |
980 | av_push (coro->args, newSVsv (ST (i))); |
1074 | av_push (coro->args, newSVsv (ST (i))); |
981 | |
|
|
982 | coro->stack = main_stack; |
|
|
983 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
|
|
984 | /*coro->stack = 0;*/ |
|
|
985 | } |
1075 | } |
986 | OUTPUT: |
1076 | OUTPUT: |
987 | RETVAL |
1077 | RETVAL |
988 | |
1078 | |
989 | void |
1079 | void |
990 | transfer (prev, next, flags) |
1080 | _set_stacklevel (...) |
991 | SV *prev |
1081 | ALIAS: |
992 | SV *next |
1082 | Coro::State::transfer = 1 |
993 | int flags |
1083 | Coro::schedule = 2 |
|
|
1084 | Coro::cede = 3 |
994 | CODE: |
1085 | CODE: |
995 | PUTBACK; |
|
|
996 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
|
|
997 | SPAGAIN; |
|
|
998 | |
|
|
999 | int |
|
|
1000 | prio (Coro::State coro, int newprio = 0) |
|
|
1001 | ALIAS: |
|
|
1002 | nice = 1 |
|
|
1003 | CODE: |
|
|
1004 | { |
1086 | { |
1005 | RETVAL = coro->prio; |
1087 | struct transfer_args ta; |
1006 | |
1088 | |
1007 | if (items > 1) |
1089 | switch (ix) |
1008 | { |
1090 | { |
|
|
1091 | case 0: |
|
|
1092 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1093 | ta.next = 0; |
|
|
1094 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1095 | break; |
|
|
1096 | |
|
|
1097 | case 1: |
1009 | if (ix) |
1098 | if (items != 3) |
1010 | newprio += coro->prio; |
1099 | croak ("Coro::State::transfer (prev,next,flags) expects three arguments, not %d", items); |
1011 | |
1100 | |
1012 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1101 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
1013 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1102 | break; |
1014 | |
1103 | |
1015 | coro->prio = newprio; |
1104 | case 2: |
|
|
1105 | prepare_schedule (&ta); |
|
|
1106 | break; |
|
|
1107 | |
|
|
1108 | case 3: |
|
|
1109 | prepare_cede (&ta); |
|
|
1110 | break; |
1016 | } |
1111 | } |
1017 | } |
|
|
1018 | |
1112 | |
1019 | void |
1113 | TRANSFER (ta); |
1020 | _clear_idle_sp (Coro::State self) |
1114 | } |
1021 | CODE: |
|
|
1022 | self->stack->idle_sp = 0; |
|
|
1023 | |
1115 | |
1024 | void |
1116 | void |
1025 | _clone_state_from (SV *dst, SV *src) |
1117 | _clone_state_from (SV *dst, SV *src) |
1026 | CODE: |
1118 | CODE: |
1027 | { |
1119 | { |
… | |
… | |
1038 | int code |
1130 | int code |
1039 | PROTOTYPE: $ |
1131 | PROTOTYPE: $ |
1040 | CODE: |
1132 | CODE: |
1041 | _exit (code); |
1133 | _exit (code); |
1042 | |
1134 | |
1043 | MODULE = Coro::State PACKAGE = Coro::Cont |
1135 | int |
|
|
1136 | cctx_count () |
|
|
1137 | CODE: |
|
|
1138 | RETVAL = cctx_count; |
|
|
1139 | OUTPUT: |
|
|
1140 | RETVAL |
1044 | |
1141 | |
1045 | void |
1142 | int |
1046 | yield (...) |
1143 | cctx_idle () |
1047 | PROTOTYPE: @ |
1144 | CODE: |
1048 | CODE: |
1145 | RETVAL = cctx_idle; |
1049 | { |
1146 | OUTPUT: |
1050 | SV *yieldstack; |
1147 | RETVAL |
1051 | SV *sv; |
|
|
1052 | AV *defav = GvAV (PL_defgv); |
|
|
1053 | struct coro *prev, *next; |
|
|
1054 | |
|
|
1055 | yieldstack = *hv_fetch ( |
|
|
1056 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1057 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1058 | 0 |
|
|
1059 | ); |
|
|
1060 | |
|
|
1061 | /* set up @_ -- ugly */ |
|
|
1062 | av_clear (defav); |
|
|
1063 | av_fill (defav, items - 1); |
|
|
1064 | while (items--) |
|
|
1065 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1066 | |
|
|
1067 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1068 | prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1069 | next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1070 | SvREFCNT_dec (sv); |
|
|
1071 | |
|
|
1072 | coro_state_transfer (aTHX_ prev, next, 0); |
|
|
1073 | } |
|
|
1074 | |
1148 | |
1075 | MODULE = Coro::State PACKAGE = Coro |
1149 | MODULE = Coro::State PACKAGE = Coro |
1076 | |
1150 | |
1077 | BOOT: |
1151 | BOOT: |
1078 | { |
1152 | { |
… | |
… | |
1085 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1159 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1086 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1160 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1087 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1161 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1088 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1162 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1089 | |
1163 | |
1090 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
1164 | coro_current = get_sv ("Coro::current", FALSE); |
1091 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
1165 | SvREADONLY_on (coro_current); |
1092 | |
1166 | |
1093 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1167 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1094 | coro_ready[i] = newAV (); |
1168 | coro_ready[i] = newAV (); |
1095 | |
1169 | |
1096 | { |
1170 | { |
1097 | SV *sv = perl_get_sv("Coro::API", 1); |
1171 | SV *sv = perl_get_sv("Coro::API", 1); |
1098 | |
1172 | |
1099 | coroapi.schedule = api_schedule; |
1173 | coroapi.schedule = api_schedule; |
1100 | coroapi.cede = api_cede; |
1174 | coroapi.cede = api_cede; |
1101 | coroapi.ready = api_ready; |
1175 | coroapi.ready = api_ready; |
|
|
1176 | coroapi.is_ready = api_is_ready; |
1102 | coroapi.nready = &coro_nready; |
1177 | coroapi.nready = &coro_nready; |
1103 | coroapi.current = coro_current; |
1178 | coroapi.current = coro_current; |
1104 | |
1179 | |
1105 | GCoroAPI = &coroapi; |
1180 | GCoroAPI = &coroapi; |
1106 | sv_setiv (sv, (IV)&coroapi); |
1181 | sv_setiv (sv, (IV)&coroapi); |
1107 | SvREADONLY_on (sv); |
1182 | SvREADONLY_on (sv); |
1108 | } |
1183 | } |
1109 | } |
1184 | } |
1110 | |
1185 | |
1111 | void |
1186 | int |
|
|
1187 | prio (Coro::State coro, int newprio = 0) |
|
|
1188 | ALIAS: |
|
|
1189 | nice = 1 |
|
|
1190 | CODE: |
|
|
1191 | { |
|
|
1192 | RETVAL = coro->prio; |
|
|
1193 | |
|
|
1194 | if (items > 1) |
|
|
1195 | { |
|
|
1196 | if (ix) |
|
|
1197 | newprio += coro->prio; |
|
|
1198 | |
|
|
1199 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
|
|
1200 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
|
|
1201 | |
|
|
1202 | coro->prio = newprio; |
|
|
1203 | } |
|
|
1204 | } |
|
|
1205 | |
|
|
1206 | SV * |
1112 | ready (SV *self) |
1207 | ready (SV *self) |
1113 | PROTOTYPE: $ |
1208 | PROTOTYPE: $ |
1114 | CODE: |
1209 | CODE: |
1115 | api_ready (self); |
1210 | RETVAL = boolSV (api_ready (self)); |
|
|
1211 | OUTPUT: |
|
|
1212 | RETVAL |
|
|
1213 | |
|
|
1214 | SV * |
|
|
1215 | is_ready (SV *self) |
|
|
1216 | PROTOTYPE: $ |
|
|
1217 | CODE: |
|
|
1218 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1219 | OUTPUT: |
|
|
1220 | RETVAL |
1116 | |
1221 | |
1117 | int |
1222 | int |
1118 | nready (...) |
1223 | nready (...) |
1119 | PROTOTYPE: |
1224 | PROTOTYPE: |
1120 | CODE: |
1225 | CODE: |
1121 | RETVAL = coro_nready; |
1226 | RETVAL = coro_nready; |
1122 | OUTPUT: |
1227 | OUTPUT: |
1123 | RETVAL |
1228 | RETVAL |
1124 | |
1229 | |
1125 | void |
1230 | void |
1126 | schedule (...) |
1231 | _set_current (SV *current) |
1127 | PROTOTYPE: |
1232 | PROTOTYPE: $ |
1128 | CODE: |
1233 | CODE: |
1129 | api_schedule (); |
1234 | SvREFCNT_dec (SvRV (coro_current)); |
1130 | |
1235 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1131 | void |
|
|
1132 | _set_cede_self () |
|
|
1133 | CODE: |
|
|
1134 | coro_cede_self = 1; |
|
|
1135 | |
|
|
1136 | void |
|
|
1137 | cede (...) |
|
|
1138 | PROTOTYPE: |
|
|
1139 | CODE: |
|
|
1140 | api_cede (); |
|
|
1141 | |
1236 | |
1142 | MODULE = Coro::State PACKAGE = Coro::AIO |
1237 | MODULE = Coro::State PACKAGE = Coro::AIO |
1143 | |
1238 | |
1144 | SV * |
1239 | SV * |
1145 | _get_state () |
1240 | _get_state () |
1146 | CODE: |
1241 | CODE: |
1147 | { |
1242 | { |
1148 | struct { |
1243 | RETVAL = newSV (sizeof (struct io_state)); |
1149 | int errorno; |
1244 | struct io_state *data = (struct io_state *)SvPVX (RETVAL); |
1150 | int laststype; |
1245 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
1151 | int laststatval; |
1246 | SvPOK_only (RETVAL); |
1152 | Stat_t statcache; |
|
|
1153 | } data; |
|
|
1154 | |
1247 | |
1155 | data.errorno = errno; |
1248 | data->errorno = errno; |
1156 | data.laststype = PL_laststype; |
1249 | data->laststype = PL_laststype; |
1157 | data.laststatval = PL_laststatval; |
1250 | data->laststatval = PL_laststatval; |
1158 | data.statcache = PL_statcache; |
1251 | data->statcache = PL_statcache; |
1159 | |
|
|
1160 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1161 | } |
1252 | } |
1162 | OUTPUT: |
1253 | OUTPUT: |
1163 | RETVAL |
1254 | RETVAL |
1164 | |
1255 | |
1165 | void |
1256 | void |
1166 | _set_state (char *data_) |
1257 | _set_state (char *data_) |
1167 | PROTOTYPE: $ |
1258 | PROTOTYPE: $ |
1168 | CODE: |
1259 | CODE: |
1169 | { |
1260 | { |
1170 | struct { |
1261 | struct io_state *data = (void *)data_; |
1171 | int errorno; |
|
|
1172 | int laststype; |
|
|
1173 | int laststatval; |
|
|
1174 | Stat_t statcache; |
|
|
1175 | } *data = (void *)data_; |
|
|
1176 | |
1262 | |
1177 | errno = data->errorno; |
1263 | errno = data->errorno; |
1178 | PL_laststype = data->laststype; |
1264 | PL_laststype = data->laststype; |
1179 | PL_laststatval = data->laststatval; |
1265 | PL_laststatval = data->laststatval; |
1180 | PL_statcache = data->statcache; |
1266 | PL_statcache = data->statcache; |
1181 | } |
1267 | } |
|
|
1268 | |