1 | /* |
1 | /* |
2 | * libev poll fd activity backend |
2 | * libev poll fd activity backend |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
40 | #include <poll.h> |
40 | #include <poll.h> |
41 | |
41 | |
42 | void inline_size |
42 | void inline_size |
43 | pollidx_init (int *base, int count) |
43 | pollidx_init (int *base, int count) |
44 | { |
44 | { |
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45 | /* consider using memset (.., -1, ...), which is pratically guarenteed |
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46 | * to work on all systems implementing poll */ |
45 | while (count--) |
47 | while (count--) |
46 | *base++ = -1; |
48 | *base++ = -1; |
47 | } |
49 | } |
48 | |
50 | |
49 | static void |
51 | static void |
… | |
… | |
96 | else if (errno == ENOMEM && !syserr_cb) |
98 | else if (errno == ENOMEM && !syserr_cb) |
97 | fd_enomem (EV_A); |
99 | fd_enomem (EV_A); |
98 | else if (errno != EINTR) |
100 | else if (errno != EINTR) |
99 | syserr ("(libev) poll"); |
101 | syserr ("(libev) poll"); |
100 | } |
102 | } |
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103 | else |
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104 | for (p = polls; res; ++p) |
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105 | if (expect_false (p->revents)) /* this expect is debatable */ |
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106 | { |
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107 | --res; |
101 | |
108 | |
102 | for (p = polls; res; ++p) |
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103 | if (expect_false (p->revents)) /* this expect is debatable */ |
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104 | { |
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105 | --res; |
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106 | |
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107 | if (expect_false (p->revents & POLLNVAL)) |
109 | if (expect_false (p->revents & POLLNVAL)) |
108 | fd_kill (EV_A_ p->fd); |
110 | fd_kill (EV_A_ p->fd); |
109 | else |
111 | else |
110 | fd_event ( |
112 | fd_event ( |
111 | EV_A_ |
113 | EV_A_ |
112 | p->fd, |
114 | p->fd, |
113 | (p->revents & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0) |
115 | (p->revents & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0) |
114 | | (p->revents & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0) |
116 | | (p->revents & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0) |
115 | ); |
117 | ); |
116 | } |
118 | } |
117 | } |
119 | } |
118 | |
120 | |
119 | int inline_size |
121 | int inline_size |
120 | poll_init (EV_P_ int flags) |
122 | poll_init (EV_P_ int flags) |
121 | { |
123 | { |