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/cvs/Coro/Coro/CoroAPI.h
Revision: 1.4
Committed: Tue Nov 27 02:51:03 2001 UTC (23 years ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.3: +1 -3 lines
Log Message:
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File Contents

# User Rev Content
1 root 1.1 #ifndef CORO_API_H
2     #define CORO_API_H
3    
4     #include "EXTERN.h"
5     #include "perl.h"
6     #include "XSUB.h"
7    
8     /* perl-related */
9 root 1.3 #define TRANSFER_SAVE_DEFAV 0x00000001 /* @_ */
10     #define TRANSFER_SAVE_DEFSV 0x00000002 /* $_ */
11     #define TRANSFER_SAVE_ERRSV 0x00000004 /* $@ */
12 root 1.1 /* c-related */
13 root 1.3 #define TRANSFER_SAVE_CCTXT 0x00000100
14 root 1.1 #ifdef CORO_LAZY_STACK
15 root 1.3 # define TRANSFER_LAZY_STACK 0x00000200
16 root 1.1 #else
17     # define TRANSFER_LAZY_STACK 0x00000000
18     #endif
19    
20     #define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV|TRANSFER_SAVE_DEFSV \
21 root 1.4 |TRANSFER_SAVE_ERRSV|TRANSFER_SAVE_CCTXT)
22 root 1.1
23     struct coro; /* opaque */
24    
25     struct CoroAPI {
26     I32 ver;
27     #define CORO_API_VERSION 1
28    
29     /* internal */
30     /*struct coro *(*sv_to_coro)(SV *arg, const char *funcname, const char *varname);*/
31    
32     /* public, state */
33     void (*transfer)(pTHX_ SV *prev, SV *next, int flags);
34    
35     /* public, coro */
36 root 1.2 void (*schedule)(void);
37     void (*cede)(void);
38 root 1.1 void (*ready)(SV *sv);
39     int *nready;
40     GV *current;
41     };
42    
43     static struct CoroAPI *GCoroAPI;
44    
45     #define CORO_TRANSFER(prev,next) GCoroAPI->transfer(aTHX_ (prev),(next))
46 root 1.2 #define CORO_SCHEDULE GCoroAPI->schedule()
47     #define CORO_CEDE GCoroAPI->cede()
48 root 1.1 #define CORO_READY(coro) GCoroAPI->ready(coro)
49     #define CORO_NREADY (*GCoroAPI->nready)
50 root 1.2 #define CORO_CURRENT SvRV(GvSV(GCoroAPI->current))
51 root 1.1
52     #define I_CORO_API(YourName) \
53     STMT_START { \
54     SV *sv = perl_get_sv("Coro::API",0); \
55     if (!sv) croak("Coro::API not found"); \
56     GCoroAPI = (struct CoroAPI*) SvIV(sv); \
57     if (GCoroAPI->ver != CORO_API_VERSION) { \
58     croak("Coro::API version mismatch (%d != %d) -- please recompile %s", \
59     GCoroAPI->ver, CORO_API_VERSION, YourName); \
60     } \
61     } STMT_END
62    
63     #endif
64