1 | /**
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2 | * cf_log.c
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3 | */
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4 | #ifdef _WIN32
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5 | # define _USE_32BIT_TIME_T
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6 | #endif
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7 |
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8 | #include "cf_log.h"
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9 | #include "cf_file.h"
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10 | #include "cf_thread.h"
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11 | #include "cf_local.h"
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12 |
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13 | #include <stdio.h>
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14 | #include <stdlib.h>
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15 | #include <string.h>
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16 | #include <stdarg.h>
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17 | #include <time.h>
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18 |
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19 | #ifdef _WIN32
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20 | # define snprintf _snprintf
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21 | # include <Windows.h>
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22 | #else // #ifdef _WIN32
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23 | # include <sys/time.h>
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24 | #endif // #ifdef _WIN32
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25 |
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26 | #define CHECK_INVALID_CTX(__ctx) (__ctx == NULL)
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27 | #define LOCK_LOG_CTX(__ctx) CF_Mutex_Lock (&__ctx->mutex)
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28 | #define UNLOCK_LOG_CTX(__ctx) CF_Mutex_Unlock (&__ctx->mutex)
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29 | #define CHECK_INITIALIZED() (gLogEnvironment.ctxPool == NULL|| \
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30 | gLogEnvironment.ctxSize <= 0 )
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31 | #define CHECK_INVALID_MAPID(__mapid) (gLogEnvironment.ctxSize <= __mapid)
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32 | #define CHECK_MAPPED_ID(__mapid) (gLogEnvironment.ctxPool[__mapid] != NULL) \
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33 |
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34 |
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35 | #define CF_LOG_BUFFER_DEFAULT_SIZE 128 * 1024
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36 |
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37 | typedef struct __cf_util_datetime__
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38 | {
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39 | int year;
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40 | int month;
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41 | int day;
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42 | int week; /* SUN:0 ~ SAT:6 */
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43 |
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44 | int hour;
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45 | int min;
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46 | int sec;
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47 | int usec;
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48 | } S_CF_Log_DateTime, CF_Log_DateTime;
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49 |
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50 | typedef struct __cf_log_ctx__ {
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51 | char path[NAME_LENGTH + 1];
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52 | int fd;
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53 | char * buffer;
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54 | size_t size; /* entire size of buffer */
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55 | size_t length; /* data length in current */
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56 | CF_Mutex mutex;
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57 | } S_CF_LOG_CTX, CF_LOG_CTX;
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58 |
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59 | typedef struct __cf_log_environment__ {
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60 | CF_Log_Ctx * ctxPool;
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61 | int ctxSize;
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62 | } S_CF_LOG_ENVIRONMENT, CF_LOG_ENVIRONMENT;
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63 |
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64 | CF_LOG_ENVIRONMENT gLogEnvironment;
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65 |
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66 | #if defined(_WIN32) || defined(_WIN64)
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67 | /* #if defined(_WIN32) || defined(_WIN64) {{{ */
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68 | struct timezone
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69 | {
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70 | int tz_minuteswest; /* minutes W of Greenwich */
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71 | int tz_dsttime; /* type of dst correction */
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72 | };
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73 |
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74 | // Definition of a gettimeofday function
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75 | int gettimeofday(struct timeval *tv, struct timezone *tz)
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76 | {
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77 | // Define a structure to receive the current Windows filetime
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78 | FILETIME ft;
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79 |
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80 | // Initialize the present time to 0 and the timezone to UTC
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81 | unsigned __int64 ui64 =0;
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82 | static int tzflag = 0;
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83 |
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84 | if (NULL != tv)
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85 | {
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86 | GetSystemTimeAsFileTime(&ft);
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87 |
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88 | ui64 = (((unsigned __int64) ft.dwHighDateTime << 32)
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89 | + (unsigned __int64) ft.dwLowDateTime);
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90 |
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91 | if (ui64)
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92 | {
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93 | ui64 /= 10;
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94 | ui64 -= ((369 * 365 + 89) * (unsigned __int64) 86400) * 1000000;
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95 | }
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96 |
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97 | // Finally change microseconds to seconds and place in the seconds value.
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98 | // The modulus picks up the microseconds.
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99 | tv->tv_sec = (long)(ui64 / 1000000UL);
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100 | tv->tv_usec = (long)(ui64 % 1000000UL);
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101 | }
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102 |
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103 | if (NULL != tz)
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104 | {
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105 | if (!tzflag)
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106 | {
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107 | _tzset();
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108 | tzflag++;
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109 | }
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110 |
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111 | // Adjust for the timezone west of Greenwich
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112 | tz->tz_minuteswest = _timezone / 60;
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113 | tz->tz_dsttime = _daylight;
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114 | }
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115 |
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116 | return 0;
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117 | }
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118 | #endif // #if defined(_WIN32) || defined(_WIN64)
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119 | /* }}} #if defined(_WIN32) || defined(_WIN64) */
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120 |
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121 | static int
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122 | CF_Log_Local_GetTime (CF_Log_DateTime * dt)
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123 | {
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124 | struct timeval timeVal;
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125 | struct tm * timeSt;
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126 |
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127 | gettimeofday (&timeVal, NULL);
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128 | timeSt = localtime ((const time_t *)&timeVal.tv_sec);
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129 |
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130 | dt->year = timeSt->tm_year + 1900;
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131 | dt->month = timeSt->tm_mon + 1;
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132 | dt->day = timeSt->tm_mday;
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133 | dt->week = timeSt->tm_wday;
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134 |
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135 | dt->hour = timeSt->tm_hour;
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136 | dt->min = timeSt->tm_min;
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137 | dt->sec = timeSt->tm_sec;
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138 |
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139 | dt->usec = (int) timeVal.tv_usec;
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140 |
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141 | return CF_OK;
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142 | }
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143 |
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144 | static int
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145 | CF_Log_Local_GetTimeString (char * buffer)
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146 | {
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147 | CF_Log_DateTime dt;
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148 | CF_Log_Local_GetTime (&dt);
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149 |
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150 |
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151 |
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152 | snprintf (buffer, strlen ("0000-00-00 00:00:00.000"),
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153 | "%02d-%02d-%02d %02d:%02d:%02d.%03d",
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154 | dt.year, dt.month, dt.day,
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155 | dt.hour, dt.min, dt.sec, dt.usec);
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156 |
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157 | return CF_OK;
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158 | }
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159 |
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160 | static int
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161 | CF_Log_Local_Push (CF_LOG_CTX * ctx,
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162 | const char * buffer)
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163 | {
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164 | strncat (ctx->buffer + ctx->length,
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165 | buffer,
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166 | ctx->size - ctx->length);
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167 | ctx->length = strlen (ctx->buffer);
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168 |
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169 | return CF_OK;
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170 | }
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171 |
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172 | static int
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173 | CF_Log_Local_Flush (CF_LOG_CTX * ctx)
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174 | {
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175 | if (CF_File_Write (ctx->fd, ctx->buffer, ctx->length) < 0)
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176 | return CF_ERROR_LOG_FLUSH;
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177 |
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178 | memset (ctx->buffer, 0x00, ctx->size);
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179 | ctx->length = 0;
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180 |
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181 | return CF_OK;
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182 | }
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183 |
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184 | int
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185 | CF_Log_Initialize (const int logPool)
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186 | {
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187 | memset (&gLogEnvironment, 0x00, sizeof (CF_LOG_ENVIRONMENT));
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188 |
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189 | if (logPool > 0)
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190 | {
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191 | gLogEnvironment.ctxPool =
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192 | (CF_Log_Ctx *) calloc ((size_t) logPool, sizeof (CF_Log_Ctx));
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193 | gLogEnvironment.ctxSize = logPool;
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194 | }
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195 |
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196 | return CF_OK;
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197 | }
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198 |
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199 | int
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200 | CF_Log_Finalize (void)
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201 | {
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202 | int mapid = 0;
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203 |
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204 | for (mapid = 0 ; mapid < gLogEnvironment.ctxSize ; mapid++)
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205 | {
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206 | CF_Log_UnmapCtxID (mapid);
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207 | }
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208 |
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209 | if (gLogEnvironment.ctxPool != NULL)
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210 | free (gLogEnvironment.ctxPool);
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211 |
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212 | memset (&gLogEnvironment, 0x00, sizeof (CF_LOG_ENVIRONMENT));
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213 |
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214 | return CF_OK;
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215 | }
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216 |
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217 | CF_Log_Ctx
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218 | CF_Log_CreateCtx (const char * path,
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219 | const int memsize)
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220 | {
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221 | int result = 0;
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222 | int size = (memsize == CF_LOG_BUFFER_DEFAULT)
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223 | ? CF_LOG_BUFFER_DEFAULT_SIZE
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224 | : memsize;
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225 | CF_LOG_CTX * context = NULL;
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226 |
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227 | if (path == NULL)
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228 | return NULL;
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229 |
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230 | TRY
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231 | {
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232 | context = (CF_LOG_CTX *) calloc (sizeof (CF_LOG_CTX), 1);
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233 | if (context == NULL)
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234 | {
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235 | result = -1;
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236 | TRY_BREAK;
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237 | }
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238 |
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239 | context->fd = CF_File_Create (path);
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240 | if (context->fd < 0)
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241 | {
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242 | result = -2;
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243 | TRY_BREAK;
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244 | }
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245 | sprintf (context->path, "%s", path);
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246 |
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247 | if (size > 0)
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248 | {
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249 | context->buffer = (char *) calloc ((size_t) size + 1, 1);
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250 | if (context->buffer == NULL)
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251 | {
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252 | result = -3;
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253 | TRY_BREAK;
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254 | }
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255 | context->size = (size_t) size;
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256 | }
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257 | }
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258 | CATCH_IF (result < 0)
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259 | {
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260 | CF_Log_DestroyCtx ((CF_Log_Ctx) context);
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261 | return NULL;
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262 | }
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263 |
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264 | return (CF_Log_Ctx) context;
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265 | }
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266 |
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267 | int
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268 | CF_Log_DestroyCtx (CF_Log_Ctx ctx)
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269 | {
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270 | CF_LOG_CTX * context = (CF_LOG_CTX *) ctx;
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271 |
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272 | if (CHECK_INVALID_CTX (ctx))
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273 | return CF_ERROR_LOG_INVALID_CTX;
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274 |
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275 | memset (context->path, 0x00, sizeof (context->path));
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276 |
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277 | if (context->buffer != NULL)
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278 | {
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279 | CF_Log_Flush (ctx);
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280 | free (context->buffer);
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281 | context->buffer = NULL;
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282 | context->size = 0;
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283 | }
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284 |
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285 | CF_File_Close (context->fd);
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286 |
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287 | if (context->mutex != NULL)
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288 | {
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289 | if (CF_Mutex_Destory (&context->mutex) < 0)
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290 | /* do something ? */;
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291 |
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292 | context->mutex = NULL;
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293 | }
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294 |
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295 | return CF_OK;
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296 | }
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297 |
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298 | int
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299 | CF_Log_SetMultiThread (CF_Log_Ctx ctx)
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300 | {
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301 | CF_LOG_CTX * context = (CF_LOG_CTX *) ctx;
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302 |
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303 | if (CHECK_INVALID_CTX (ctx))
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304 | return CF_ERROR_LOG_INVALID_CTX;
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305 |
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306 | if (CF_Mutex_Create (&context->mutex) < 0)
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307 | return CF_ERROR_LOG_SET_MULTITHREAD;
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308 |
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309 | return CF_OK;
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310 | }
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311 |
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312 | int
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313 | CF_Log_UnsetMultiThread (CF_Log_Ctx ctx)
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314 | {
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315 | CF_LOG_CTX * context = (CF_LOG_CTX *) ctx;
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316 |
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317 | if (CHECK_INVALID_CTX (ctx))
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318 | return CF_ERROR_LOG_INVALID_CTX;
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319 |
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320 | if (CF_Mutex_Destory (&context->mutex) < 0)
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321 | return CF_ERROR_LOG_UNSET_MULTITHREAD;
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322 |
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323 | return CF_OK;
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324 | }
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325 |
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326 | int
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327 | CF_Log_Write (CF_Log_Ctx ctx,
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328 | const char * prefix,
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329 | const char * fmt, ...)
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330 | {
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331 | CF_LOG_CTX * context = (CF_LOG_CTX *) ctx;
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332 | va_list valist;
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333 | char buffer[4096] = {0x00,};
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334 | size_t length = 0;
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335 |
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336 | if (CHECK_INVALID_CTX (ctx))
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337 | return CF_ERROR_LOG_INVALID_CTX;
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338 |
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339 | LOCK_LOG_CTX (context);
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340 | va_start (valist, fmt);
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341 |
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342 | strncat (buffer, "[", 1);
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343 | CF_Log_Local_GetTimeString (buffer + strlen (buffer));
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344 | sprintf (buffer + strlen (buffer), "][%s] ", prefix);
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345 | vsprintf (buffer + strlen (buffer), fmt, valist);
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346 |
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347 | if (context->size == CF_LOG_BUFFER_NO)
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348 | {
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349 | context->buffer = buffer;
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350 | context->length = strlen (buffer);
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351 |
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352 | CF_Log_Local_Flush (context);
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353 |
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354 | context->buffer = NULL;
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355 | /* context->length = 0; // already did this in flush */
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356 | }
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357 | else /* (context->size > 0) */
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358 | {
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359 | length = context->size - context->length;
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360 | CF_Log_Local_Push (context, buffer);
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361 |
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362 | if (context->length == context->size)
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363 | {
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364 | CF_Log_Local_Flush (context);
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365 | CF_Log_Local_Push (context, buffer + length);
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366 | }
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367 | }
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368 |
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369 | va_end (valist);
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370 | UNLOCK_LOG_CTX (context);
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371 |
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372 | return CF_OK;
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373 | }
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374 |
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375 | int
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376 | CF_Log_Flush (CF_Log_Ctx ctx)
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377 | {
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378 | CF_LOG_CTX * context = (CF_LOG_CTX *) ctx;
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379 |
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380 | if (CHECK_INVALID_CTX (ctx))
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381 | return CF_ERROR_LOG_INVALID_CTX;
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382 |
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383 | LOCK_LOG_CTX (context);
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384 | CF_Log_Local_Flush (context);
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385 | UNLOCK_LOG_CTX (context);
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386 |
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387 | return CF_OK;
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388 | }
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389 |
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390 | int
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391 | CF_Log_MapCtxID (const int mapid,
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392 | const CF_Log_Ctx ctx)
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393 | {
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394 | int result = 0;
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395 |
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396 | TRY
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397 | {
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398 | if (CHECK_INITIALIZED())
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399 | {
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400 | result = CF_ERROR_LOG_NOT_INITIALIZE;
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401 | TRY_BREAK;
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402 | }
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403 | if (CHECK_INVALID_MAPID(mapid))
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404 | {
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405 | result = CF_ERROR_LOG_INVALID_MAPID;
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406 | TRY_BREAK;
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407 | }
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408 | if (CHECK_MAPPED_ID(mapid))
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409 | {
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410 | result = CF_ERROR_LOG_ALREADY_MAPPED_ID;
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411 | TRY_BREAK;
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412 | }
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413 | }
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414 | CATCH_IF (result < 0)
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415 | {
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416 | CF_Log_DestroyCtx (ctx);
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417 | return result;
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418 | }
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419 |
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420 | gLogEnvironment.ctxPool[mapid] = ctx;
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421 |
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422 | return CF_OK;
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423 | }
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424 |
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425 | int
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426 | CF_Log_UnmapCtxID (const int mapid)
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427 | {
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428 | if (CHECK_INITIALIZED())
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429 | return CF_ERROR_LOG_NOT_INITIALIZE;
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430 | if (CHECK_INVALID_MAPID(mapid))
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431 | return CF_ERROR_LOG_INVALID_MAPID;
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432 | if (!CHECK_MAPPED_ID(mapid))
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433 | return CF_ERROR_LOG_NOT_MAPPED_ID;
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434 |
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435 | CF_Log_DestroyCtx (gLogEnvironment.ctxPool[mapid]);
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436 |
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437 | free (gLogEnvironment.ctxPool[mapid]);
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438 | gLogEnvironment.ctxPool[mapid] = NULL;
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439 |
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440 | return CF_OK;
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441 | }
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442 |
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443 | CF_Log_Ctx
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444 | CF_Log_GetMappedCtx (const int mapid)
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445 | {
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446 | if (CHECK_INITIALIZED())
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447 | return NULL;
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448 | if (CHECK_INVALID_MAPID(mapid))
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449 | return NULL;
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450 | if (!CHECK_MAPPED_ID(mapid))
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451 | return NULL;
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452 |
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453 | return gLogEnvironment.ctxPool[mapid];
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454 | }
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