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3311
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1 /* |
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2 |
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3 Copyright (C) 1999 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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4086
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27 #include <stdarg.h> |
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28 #include <stdio.h> |
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29 #include <stdlib.h> |
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30 #include <string.h> |
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31 |
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32 #if defined (__WIN32__) && ! defined (_POSIX_VERSION) |
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33 |
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34 #include <windows.h> |
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35 |
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36 #else |
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37 |
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3311
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38 #ifdef HAVE_UNISTD_H |
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39 #ifdef HAVE_SYS_TYPES_H |
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40 #include <sys/types.h> |
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41 #endif |
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42 #include <unistd.h> |
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43 #endif |
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44 |
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45 #include "systime.h" |
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46 |
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47 #ifdef HAVE_POLL_H |
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48 #include <poll.h> |
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49 #elif HAVE_SYS_POLL_H |
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50 #include <sys/poll.h> |
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51 #endif |
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52 |
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53 #endif |
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54 |
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3317
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55 void |
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4067
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56 octave_sleep (unsigned int seconds) |
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57 { |
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4084
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58 #if defined (__WIN32__) && ! defined (_POSIX_VERSION) |
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59 Sleep (1000 * seconds); |
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60 #else |
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61 sleep (seconds); |
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62 #endif |
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4067
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63 } |
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64 |
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65 void |
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66 octave_usleep (unsigned int useconds) |
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67 { |
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68 unsigned int sec = useconds / 1000000; |
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69 unsigned int usec = useconds % 1000000; |
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70 |
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71 if (sec > 0) |
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72 octave_sleep (sec); |
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73 |
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74 #if defined (__WIN32__) && ! defined (_POSIX_VERSION) |
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75 |
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76 /* Round to the nearest millisecond, with a minimum of 1 millisecond |
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77 if usleep was called with a a non-zero value. */ |
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78 |
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79 if (usec > 500) |
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80 Sleep ((usec+500)/1000); |
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81 else if (usec > 0) |
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82 Sleep (1); |
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83 else |
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84 Sleep (0); |
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85 |
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86 #elif defined (HAVE_USLEEP) |
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87 |
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88 usleep (usec); |
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89 |
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90 #elif defined (HAVE_SELECT) |
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91 |
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92 struct timeval delay; |
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93 |
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94 delay.tv_sec = 0; |
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95 delay.tv_usec = usec; |
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96 |
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97 select (0, 0, 0, 0, &delay); |
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98 |
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99 #elif defined (HAVE_POLL) |
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100 |
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101 struct pollfd pfd; |
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102 int delay = usec / 1000; |
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103 |
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104 if (delay > 0) |
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105 poll (&fd, 0, delay); |
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106 |
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107 #endif |
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3317
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108 } |
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109 |
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3350
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110 int |
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111 octave_strcasecmp (const char *s1, const char *s2) |
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112 { |
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113 return strcasecmp (s1, s2); |
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114 } |
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115 |
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116 int |
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117 octave_strncasecmp (const char *s1, const char *s2, size_t n) |
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118 { |
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119 return strncasecmp (s1, s2, n); |
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120 } |
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121 |
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122 /* XXX FIXME XXX -- we really need a configure test for this. */ |
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123 |
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124 #if defined __GNUC__ && __GNUC__ >= 3 |
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125 #define HAVE_C99_VSNPRINTF 1 |
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126 #endif |
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127 |
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128 /* We manage storage. User should not free it, and its contents are |
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129 only valid until next call to vsnprintf. */ |
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130 |
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131 char * |
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132 octave_vsnprintf (const char *fmt, va_list args) |
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133 { |
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134 static size_t size = 100; |
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135 |
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4124
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136 static char *buf = 0; |
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137 |
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138 int nchars; |
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139 |
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140 if (! buf) |
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141 buf = malloc (size); |
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142 |
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143 if (! buf) |
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144 return 0; |
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145 |
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146 #if defined (HAVE_C99_VSNPRINTF) |
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147 |
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148 nchars = vsnprintf (buf, size, fmt, args); |
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4150
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149 |
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150 if (nchars >= size) |
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151 { |
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152 size = nchars + 1; |
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153 buf = realloc (buf, size); |
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154 |
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155 if (buf) |
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156 vsnprintf (buf, size, fmt, args); |
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4156
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157 } |
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158 |
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159 #else |
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160 |
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161 while (1) |
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162 { |
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163 nchars = vsnprintf (buf, size, fmt, args); |
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164 |
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165 if (nchars > -1) |
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166 return buf; |
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167 else |
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168 { |
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169 size *= 2; |
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170 |
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171 buf = realloc (buf, size); |
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172 |
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173 if (! buf) |
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174 return 0; |
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175 } |
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176 } |
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177 |
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178 #endif |
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179 |
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180 return buf; |
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181 } |
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182 |
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183 char * |
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184 octave_snprintf (const char *fmt, ...) |
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185 { |
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186 char *retval = 0; |
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187 |
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188 va_list args; |
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189 va_start (args, fmt); |
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190 |
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191 retval = octave_vsnprintf (fmt, args); |
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192 |
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193 va_end (args); |
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194 |
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195 return retval; |
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196 } |
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197 |
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3311
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198 /* |
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199 ;;; Local Variables: *** |
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200 ;;; mode: C++ *** |
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201 ;;; End: *** |
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202 */ |
