+ }
+ return res;
+}
+
+struct xbt_log_append2_file_s {
+ FILE* file;
+ char* filename;
+ int count; //negative for roll
+ long int limit;
+};
+typedef struct xbt_log_append2_file_s* xbt_log_append2_file_t;
+
+#define APPEND2_END_TOKEN "\n[End of log]\n"
+#define APPEND2_END_TOKEN_CLEAR "\n "
+
+static void open_append2_file(xbt_log_append2_file_t data){
+ if(data->count<0) {
+ //Roll
+ if (!data->file) {
+ data->file= fopen(data->filename, "w");
+ if (data->file == NULL)
+ xbt_die("Cannot open file: %s: %s", data->filename, strerror(errno));
+ } else {
+ fputs(APPEND2_END_TOKEN_CLEAR,data->file);
+ fseek(data->file,0,SEEK_SET);
+ }
+ } else{
+ //Split
+ if(data->file)
+ fclose(data->file);
+ char newname[512];
+ char* pre=xbt_strdup(data->filename);
+ char* sep=strchr(pre,'%');
+ if(!sep)
+ sep=pre+strlen(pre);
+ char* post=sep+1;
+ *sep='\0';
+ snprintf(newname,511,"%s%i%s",pre,data->count,post);
+ data->count++;
+ data->file= fopen(newname, "w");
+ if (data->file == NULL)
+ xbt_die("Cannot open file: %s: %s", newname, strerror(errno));
+ xbt_free(pre);
+ }
+}
+
+static void append2_file(xbt_log_appender_t this_, char *str) {
+ xbt_log_append2_file_t d=(xbt_log_append2_file_t) this_->data;
+ xbt_assert(d->file);
+ if(ftell(d->file)>=d->limit) {
+ open_append2_file(d);
+ }
+ fputs(str, d->file);
+ if(d->count<0){
+ fputs(APPEND2_END_TOKEN,d->file);
+ fseek(d->file,-((signed long)strlen(APPEND2_END_TOKEN)),SEEK_CUR);
+ }
+}
+
+static void free_append2_(xbt_log_appender_t this_)
+{
+ xbt_log_append2_file_t data = this_->data;
+ if (data->file)
+ fclose(data->file);
+ xbt_free(data->filename);
+ xbt_free(data);
+}
+
+
+//syntax is <maxsize>:<filename>
+//If roll is 0, use split files, otherwise, use roll file
+//For split, replace % in the file by the current count
+xbt_log_appender_t xbt_log_appender2_file_new(char *arg,int roll) {
+
+ xbt_log_appender_t res = xbt_new0(s_xbt_log_appender_t, 1);
+ res->do_append = &append2_file;
+ res->free_ = &free_append2_;
+ xbt_log_append2_file_t data = xbt_new0(struct xbt_log_append2_file_s, 1);
+ xbt_assert(arg);
+ char* buf=xbt_strdup(arg);
+ char* sep=strchr(buf,':');
+ xbt_assert(sep>0);
+ data->filename=xbt_strdup(sep+1);
+ *sep='\0';
+ char *endptr;
+ data->limit=strtol(buf,&endptr,10);
+ xbt_assert(endptr[0]=='\0', "Invalid buffer size: %s", buf);
+ xbt_free(buf);
+ if(roll)
+ data->count=-1;
+ else
+ data->count=0;
+ open_append2_file(data);
+ res->data = data;