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shell: limit taos_history file size and rows

This commit is contained in:
afwerar 2022-07-18 20:30:04 +08:00
parent 52dd4b2c5c
commit 1e4dae929c
1 changed files with 21 additions and 7 deletions
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28
tools/shell/src/shellEngine.c
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@ -737,13 +737,6 @@ int32_t shellDumpResult(TAOS_RES *tres, char *fname, int32_t *error_no, bool ver
void shellReadHistory() {
SShellHistory *pHistory = &shell.history;
int64_t file_size;
if (taosStatFile(pHistory->file, &file_size, NULL) != 0) {
return;
} else if (file_size > SHELL_MAX_COMMAND_SIZE) {
taosRemoveFile(pHistory->file);
return;
}
TdFilePtr pFile = taosOpenFile(pHistory->file, TD_FILE_READ | TD_FILE_STREAM);
if (pFile == NULL) return;
@ -763,10 +756,31 @@ void shellReadHistory() {
if (line != NULL) taosMemoryFree(line);
taosCloseFile(&pFile);
int64_t file_size;
if (taosStatFile(pHistory->file, &file_size, NULL) == 0 && file_size > SHELL_MAX_COMMAND_SIZE) {
fprintf(stdout,"%s(%d) %s %08" PRId64 "\n", __FILE__, __LINE__,__func__,taosGetSelfPthreadId());fflush(stdout);
TdFilePtr pFile = taosOpenFile(pHistory->file, TD_FILE_CREATE | TD_FILE_WRITE | TD_FILE_STREAM | TD_FILE_TRUNC);
if (pFile == NULL) return;
int32_t endIndex = pHistory->hstart;
if (endIndex != 0) {
endIndex = pHistory->hend;
}
for (int32_t i = (pHistory->hend + SHELL_MAX_HISTORY_SIZE - 1) % SHELL_MAX_HISTORY_SIZE; i != endIndex;) {
printf("%d ",i);
taosFprintfFile(pFile, "%s\n", pHistory->hist[i]);
i = (i + SHELL_MAX_HISTORY_SIZE - 1) % SHELL_MAX_HISTORY_SIZE;
}
taosFprintfFile(pFile, "%s\n", pHistory->hist[endIndex]);
printf("\n");
taosFsyncFile(pFile);
taosCloseFile(&pFile);
}
pHistory->hend = pHistory->hstart;
}
void shellWriteHistory() {
SShellHistory *pHistory = &shell.history;
if (pHistory->hend == pHistory->hstart) return;
TdFilePtr pFile = taosOpenFile(pHistory->file, TD_FILE_CREATE | TD_FILE_WRITE | TD_FILE_STREAM | TD_FILE_APPEND);
if (pFile == NULL) return;