|
libexplain
1.4.D001
|
00001 /* 00002 * libexplain - a library of system-call-specific strerror replacements 00003 * Copyright (C) 2010, 2011, 2013 Peter Miller 00004 * 00005 * This program is free software; you can redistribute it and/or modify 00006 * it under the terms of the GNU Lesser General Public License as 00007 * published by the Free Software Foundation; either version 3 of the 00008 * License, or (at your option) any later version. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * Lesser General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU Lesser General Public License 00016 * along with this program. If not, see <http://www.gnu.org/licenses/>. 00017 */ 00018 00019 #include <libexplain/ac/poll.h> 00020 00021 #include <libexplain/buffer/fildes.h> 00022 #include <libexplain/buffer/pollfd.h> 00023 #include <libexplain/buffer/pointer.h> 00024 #include <libexplain/parse_bits.h> 00025 #include <libexplain/is_efault.h> 00026 00027 00028 static void 00029 explain_buffer_pollfd_events(explain_string_buffer_t *sb, int value) 00030 { 00031 static const explain_parse_bits_table_t table[] = 00032 { 00033 #ifdef POLLIN 00034 { "POLLIN", POLLIN }, 00035 #endif 00036 #ifdef POLLPRI 00037 { "POLLPRI", POLLPRI }, 00038 #endif 00039 #ifdef POLLOUT 00040 { "POLLOUT", POLLOUT }, 00041 #endif 00042 #ifdef POLLRDNORM 00043 { "POLLRDNORM", POLLRDNORM }, 00044 #endif 00045 #ifdef POLLRDBAND 00046 { "POLLRDBAND", POLLRDBAND }, 00047 #endif 00048 #ifdef POLLWRNORM 00049 { "POLLWRNORM", POLLWRNORM }, 00050 #endif 00051 #ifdef POLLWRBAND 00052 { "POLLWRBAND", POLLWRBAND }, 00053 #endif 00054 #ifdef POLLMSG 00055 { "POLLMSG", POLLMSG }, 00056 #endif 00057 #ifdef POLLREMOVE 00058 { "POLLREMOVE", POLLREMOVE }, 00059 #endif 00060 #ifdef POLLRDHUP 00061 { "POLLRDHUP", POLLRDHUP }, 00062 #endif 00063 #ifdef POLLERR 00064 { "POLLERR", POLLERR }, 00065 #endif 00066 #ifdef POLLHUP 00067 { "POLLHUP", POLLHUP }, 00068 #endif 00069 #ifdef POLLNVAL 00070 { "POLLNVAL", POLLNVAL }, 00071 #endif 00072 }; 00073 explain_parse_bits_print(sb, value, table, SIZEOF(table)); 00074 } 00075 00076 00077 void 00078 explain_buffer_pollfd(explain_string_buffer_t *sb, 00079 const struct pollfd *data, int include_revents) 00080 { 00081 #ifdef HAVE_POLL_H 00082 if (explain_is_efault_pointer(data, sizeof(*data))) 00083 { 00084 explain_buffer_pointer(sb, data); 00085 return; 00086 } 00087 00088 explain_string_buffer_puts(sb, "{ fd = "); 00089 explain_buffer_fildes(sb, data->fd); 00090 explain_string_buffer_puts(sb, ", events = "); 00091 explain_buffer_pollfd_events(sb, data->events); 00092 if (include_revents) 00093 { 00094 explain_string_buffer_puts(sb, ", revents = "); 00095 explain_buffer_pollfd_events(sb, data->revents); 00096 } 00097 explain_string_buffer_puts(sb, " }"); 00098 #else 00099 (void)include_revents; 00100 explain_buffer_pointer(sb, data); 00101 #endif 00102 } 00103 00104 00105 void 00106 explain_buffer_pollfd_array(explain_string_buffer_t *sb, 00107 const struct pollfd *data, int data_size, int include_revents) 00108 { 00109 #ifdef HAVE_POLL_H 00110 int j; 00111 00112 if 00113 ( 00114 data_size <= 0 00115 || 00116 explain_is_efault_pointer(data, sizeof(*data) * data_size) 00117 ) 00118 { 00119 explain_buffer_pointer(sb, data); 00120 return; 00121 } 00122 00123 explain_string_buffer_putc(sb, '{'); 00124 for (j = 0; j < data_size; ++j) 00125 { 00126 if (j) 00127 explain_string_buffer_putc(sb, ','); 00128 explain_string_buffer_putc(sb, ' '); 00129 explain_buffer_pollfd(sb, data + j, include_revents); 00130 } 00131 explain_string_buffer_puts(sb, " }"); 00132 #else 00133 (void)data_size; 00134 (void)include_revents; 00135 explain_buffer_pointer(sb, data); 00136 #endif 00137 } 00138 00139 00140 /* vim: set ts=8 sw=4 et : */
1.7.6.1