diff options
Diffstat (limited to 'src/shared/dlt_offline_trace.c')
| -rw-r--r-- | src/shared/dlt_offline_trace.c | 174 |
1 files changed, 164 insertions, 10 deletions
diff --git a/src/shared/dlt_offline_trace.c b/src/shared/dlt_offline_trace.c index c4d3f6b..b2e5612 100644 --- a/src/shared/dlt_offline_trace.c +++ b/src/shared/dlt_offline_trace.c @@ -65,21 +65,175 @@ #include <dlt_offline_trace.h> +unsigned int dlt_offline_trace_storage_dir_info(char *path, char *file_name, char *newest, char *oldest) +{ + int i = 0; + unsigned int num = 0; + int cnt = 0; + struct dirent **files = {0}; + char *tmp_old = NULL; + char *tmp_new = NULL; + + if (path == NULL || file_name == NULL || newest == NULL || oldest == NULL) + { + printf("dlt_offline_trace_storage_dir_info: Invalid parameter(s)"); + return 0; + } + + cnt = scandir(path, &files, NULL, alphasort); + + if (cnt < 0) + { + return 0; + } + + for (i = 0; i < cnt; i++) + { + int len = 0; + len = strlen(file_name); + if ((strncmp(files[i]->d_name, file_name, len) == 0) && (files[i]->d_name[len] == '.')) + { + num++; + + if (tmp_old == NULL || (strlen(tmp_old) >= strlen(files[i]->d_name))) + { + if (tmp_old == NULL) + { + tmp_old = files[i]->d_name; + } + /* when file name is smaller, it is older */ + else if (strlen(tmp_old) > strlen(files[i]->d_name)) + { + tmp_old = files[i]->d_name; + } + else /* filename is equal, do a string compare */ + { + if (strcmp(tmp_old, files[i]->d_name) > 0) + tmp_old = files[i]->d_name; + } + } + + if (tmp_new == NULL || (strlen(tmp_new) <= strlen(files[i]->d_name))) + { + if (tmp_new == NULL) + { + tmp_new = files[i]->d_name; + } + /* when file name is longer, it is younger */ + else if (strlen(tmp_new) < strlen(files[i]->d_name)) + { + tmp_new = files[i]->d_name; + } + else + { + if (strcmp(tmp_new, files[i]->d_name) < 0) + { + tmp_new = files[i]->d_name; + } + } + } + } + } + + if (num > 0) + { + if (tmp_old != NULL) + { + if (strlen(tmp_old) < DLT_OFFLINETRACE_FILENAME_MAX_SIZE) + { + strncpy(oldest, tmp_old, DLT_OFFLINETRACE_FILENAME_MAX_SIZE); + } + } + if (tmp_new != NULL) + { + if (strlen(tmp_old) < DLT_OFFLINETRACE_FILENAME_MAX_SIZE) + { + strncpy(newest, tmp_new, DLT_OFFLINETRACE_FILENAME_MAX_SIZE); + } + } + } + + /* free scandir result */ + for (i = 0; i < cnt; i++) + { + free(files[i]); + } + free(files); + + return num; +} + +void dlt_offline_trace_file_name(char *log_file_name, char *name, unsigned int idx) +{ + char file_index[11]; // UINT_MAX = 4294967295 -> 10 digits + sprintf(file_index, "%010u", idx); + + // create log file name + memset(log_file_name, 0, DLT_OFFLINETRACE_FILENAME_MAX_SIZE * sizeof(char)); + strncat(log_file_name, name,sizeof(DLT_OFFLINETRACE_FILENAME_BASE)); + strncat(log_file_name, DLT_OFFLINETRACE_FILENAME_DELI,sizeof(DLT_OFFLINETRACE_FILENAME_DELI)); + strncat(log_file_name, file_index,sizeof(file_index)); + strncat(log_file_name, DLT_OFFLINETRACE_FILENAME_EXT,sizeof(DLT_OFFLINETRACE_FILENAME_EXT)); +} + +unsigned int dlt_offline_trace_get_idx_of_log_file(char *file) +{ + const char d[2] = "."; + char *token; + unsigned int idx = 0; + + if (file[0] == '\0') + { + return 0; + } + + token = strtok(file, d); + /* we are interested in 2. token because of log file name */ + token = strtok(NULL, d); + + if (token != NULL) + { + idx = strtol(token, NULL, 10); + } + else + { + idx = 0; + } + return idx; +} + + DltReturnValue dlt_offline_trace_create_new_file(DltOfflineTrace *trace) { time_t t; struct tm *tmp; char outstr[200]; + char newest[DLT_OFFLINETRACE_FILENAME_MAX_SIZE] = {0}; + char oldest[DLT_OFFLINETRACE_FILENAME_MAX_SIZE] = {0}; + unsigned int idx = 0; /* set filename */ - t = time(NULL); - tmp = localtime(&t); - if (NULL == tmp) { - printf("dlt_offline_trace_create_new_file: pointer to tmp is NULL!"); - return DLT_RETURN_ERROR; + if(trace->filenameTimestampBased) + { + t = time(NULL); + tmp = localtime(&t); + if (NULL == tmp) { + printf("dlt_offline_trace_create_new_file: pointer to tmp is NULL!"); + return DLT_RETURN_ERROR; + } + if (strftime(outstr, sizeof(outstr),"%Y%m%d_%H%M%S", tmp) == 0) { + } + snprintf(trace->filename, NAME_MAX + 1, "%s/dlt_offlinetrace_%s.dlt", trace->directory, outstr); } - if (strftime(outstr, sizeof(outstr),"%Y%m%d_%H%M%S", tmp) == 0) { + else + { + /* targeting newest file, ignoring number of files in dir returned */ + dlt_offline_trace_storage_dir_info(trace->directory, DLT_OFFLINETRACE_FILENAME_BASE, newest, oldest); + idx = dlt_offline_trace_get_idx_of_log_file(newest) + 1; + + dlt_offline_trace_file_name(outstr, DLT_OFFLINETRACE_FILENAME_BASE, idx); + snprintf(trace->filename, NAME_MAX + 1, "%s/%s", trace->directory, outstr); } - snprintf(trace->filename,NAME_MAX + 1,"%s/dlt_offlinetrace_%s.dlt",trace->directory,outstr); + /* open DLT output file */ trace->ohandle = open(trace->filename,O_WRONLY|O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); /* mode: wb */ @@ -144,7 +298,7 @@ int dlt_offline_trace_delete_oldest_file(DltOfflineTrace *trace) { /* go through all dlt files in directory */ DIR *dir = opendir(trace->directory); while ((dp=readdir(dir)) != NULL) { - if(strstr(dp->d_name,".dlt")) { + if(strstr(dp->d_name,DLT_OFFLINETRACE_FILENAME_TO_COMPARE)) { int res = snprintf(filename, sizeof(filename), "%s/%s",trace->directory,dp->d_name); // if the total length of the string is greater than the buffer, silently forget it. // snprintf: a return value of size or more means that the output was truncated @@ -197,14 +351,14 @@ DltReturnValue dlt_offline_trace_check_size(DltOfflineTrace *trace) { return DLT_RETURN_OK; /* OK */ } -DltReturnValue dlt_offline_trace_init(DltOfflineTrace *trace,const char *directory,int fileSize,int maxSize) { +DltReturnValue dlt_offline_trace_init(DltOfflineTrace *trace,const char *directory,int fileSize,int maxSize,int filenameTimestampBased) { /* init parameters */ strncpy(trace->directory,directory,NAME_MAX); trace->directory[NAME_MAX]=0; trace->fileSize = fileSize; trace->maxSize = maxSize; - + trace->filenameTimestampBased = filenameTimestampBased; /* check complete offlien trace size, remove old logs if needed */ dlt_offline_trace_check_size(trace); |