| 1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
| 2 | #include "perl.h" |
2 | #include "perl.h" |
| 3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
| 4 | |
4 | |
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5 | #include <string.h> |
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6 | |
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7 | #include "EventAPI.h" |
| 5 | #include "CoroAPI.h" |
8 | #include "../Coro/CoroAPI.h" |
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9 | |
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10 | #define CD_CORO 0 |
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11 | #define CD_TYPE 1 |
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12 | #define CD_OK 2 |
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13 | #define CD_GOT 3 /* hardcoded in Coro::Event, Coro::Handle */ |
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14 | #define CD_MAX 3 |
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15 | /* no support for hits and prio so far. */ |
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16 | |
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17 | #define EV_CLASS "Coro::Event" |
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18 | |
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19 | static pe_idle *scheduler; |
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20 | static int do_schedule; |
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21 | |
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22 | #define NEED_SCHEDULE if (!do_schedule) \ |
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23 | { \ |
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24 | do_schedule = 1; \ |
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25 | GEventAPI->now ((pe_watcher *)scheduler); \ |
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26 | } |
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27 | |
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28 | static void |
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29 | coro_std_cb(pe_event *pe) |
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30 | { |
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31 | AV *priv = (AV *)SvRV ((SV *)pe->ext_data); |
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32 | IV type = SvIV (*av_fetch (priv, CD_TYPE, 1)); |
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33 | SV *cd_coro = *av_fetch (priv, CD_CORO, 1); |
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34 | |
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35 | if (type == 1) |
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36 | av_store (priv, CD_GOT, newSViv (((pe_ioevent *)pe)->got)); |
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37 | |
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38 | if (SvROK (cd_coro)) |
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39 | { |
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40 | CORO_READY (cd_coro); |
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41 | av_store (priv, CD_CORO, &PL_sv_undef); |
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42 | NEED_SCHEDULE; |
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43 | } |
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44 | else |
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45 | { |
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46 | av_store (priv, CD_OK, &PL_sv_yes); |
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47 | GEventAPI->stop (pe->up, 0); |
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48 | } |
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49 | } |
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50 | |
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51 | static void |
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52 | scheduler_cb(pe_event *pe) |
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53 | { |
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54 | while (CORO_NREADY) |
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55 | CORO_CEDE; |
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56 | |
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57 | do_schedule = 0; |
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58 | } |
| 6 | |
59 | |
| 7 | MODULE = Coro::Event PACKAGE = Coro::Event |
60 | MODULE = Coro::Event PACKAGE = Coro::Event |
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61 | |
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62 | PROTOTYPES: ENABLE |
| 8 | |
63 | |
| 9 | BOOT: |
64 | BOOT: |
| 10 | { |
65 | { |
| 11 | I_EVENT_API("Coro::Event"); |
66 | I_EVENT_API("Coro::Event"); |
| 12 | I_CORO_API ("Coro::Event"); |
67 | I_CORO_API ("Coro::Event"); |
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68 | |
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69 | /* create a fake idle handler (we only ever call now) */ |
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70 | scheduler = GEventAPI->new_idle (0, 0); |
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71 | scheduler->base.callback = scheduler_cb; |
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72 | scheduler->min_interval = newSVnv (0); |
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73 | scheduler->max_interval = newSVnv (0); |
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74 | GEventAPI->stop ((pe_watcher *)scheduler, 0); |
| 13 | } |
75 | } |
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76 | |
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77 | void |
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78 | _install_std_cb(self,type) |
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79 | SV * self |
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80 | int type |
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81 | CODE: |
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82 | pe_watcher *w = GEventAPI->sv_2watcher (self); |
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83 | AV *priv = newAV (); |
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84 | SV *rv = newRV_noinc ((SV *)priv); |
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85 | |
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86 | av_extend (priv, CD_MAX); |
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87 | av_store (priv, CD_TYPE, newSViv (type)); |
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88 | |
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89 | w->callback = coro_std_cb; |
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90 | w->ext_data = rv; |
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91 | |
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92 | hv_store ((HV *)SvRV (self), |
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93 | EV_CLASS, strlen (EV_CLASS), |
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94 | rv, 0); |
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95 | |
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96 | void |
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97 | _next(self) |
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98 | SV * self |
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99 | CODE: |
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100 | pe_watcher *w = GEventAPI->sv_2watcher (self); |
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101 | AV *priv = (AV *)SvRV ((SV *)w->ext_data); |
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102 | |
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103 | if (SvOK (*av_fetch (priv, CD_CORO, 1))) |
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104 | croak ("only one coroutine can wait for an event"); |
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105 | |
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106 | if (!w->running) |
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107 | GEventAPI->start (w, 1); |
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108 | |
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109 | if (*av_fetch (priv, CD_OK, 1) == &PL_sv_yes) |
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110 | { |
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111 | av_store (priv, CD_OK, &PL_sv_no); |
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112 | XSRETURN_NO; |
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113 | } |
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114 | else |
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115 | { |
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116 | av_store (priv, CD_CORO, SvREFCNT_inc (CORO_CURRENT)); |
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117 | XSRETURN_YES; |
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118 | } |
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119 | |
