void ensure_file_size(rollingfile_t* rf)
{
string_buffer_t bak1;
string_buffer_t bak2;
size_t n;
if(rf->current_size < rf->max_size)
{
if(0 == rf->out)
{
rf->out = fopen(rf->nm, "a+");
if(0 == rf->out)
printf("打开日志文件 '%s' 失败 - %s", rf->nm, strerror(errno));
}
return;
}
if(0 != rf->out)
{
fclose(rf->out);
rf->out = 0;
}
string_buffer_init(&bak1);
string_buffer_init(&bak2);
string_buffer_assign(&bak2, rf->nm);
string_buffer_append_sprintf(&bak2,".%u", rf->remain_count);
remove(string_data(&bak2));
for(n = rf->remain_count-1; n > 0; --n)
{
string_buffer_assign(&bak1, rf->nm);
string_buffer_append_sprintf(&bak1,".%u", n);
if(0 != rename(string_data(&bak1), string_data(&bak2)))
debugPrintf(string_data(&bak1), string_data(&bak2));
string_buffer_swap(&bak1, &bak2);
}
if(0 != rename(rf->nm, string_data(&bak2)))
{
debugPrintf(rf->nm, string_data(&bak2));
}
else
{
rf->current_size = 0;
rf->out = fopen(rf->nm, "a+");
if(0 == rf->out)
printf("打开日志文件 '%s' 失败 - %s", rf->nm, strerror(errno));
}
string_buffer_destroy(&bak1);
string_buffer_destroy(&bak2);
}
char *
str_replace (const char *haystack, const char *needle, const char *replacement)
{
assert (haystack != NULL);
assert (needle != NULL);
assert (replacement != NULL);
string_buffer_t *sb = string_buffer_create ();
size_t haystack_len = strlen (haystack);
size_t needle_len = strlen (needle);
int pos = 0;
while (pos < haystack_len) {
if (needle_len > 0 && str_starts_with (&haystack[pos], needle)) {
string_buffer_append_string (sb, replacement);
pos += needle_len;
}
else {
string_buffer_append (sb, haystack[pos]);
pos++;
}
}
if (needle_len == 0 && haystack_len == 0)
string_buffer_append_string (sb, replacement);
char *res = string_buffer_to_string (sb);
string_buffer_destroy (sb);
return res;
}
zarray_t *
str_split (const char *str, const char *delim)
{
assert (str != NULL);
assert (delim != NULL);
zarray_t *parts = zarray_create (sizeof(char*));
string_buffer_t *sb = string_buffer_create ();
size_t delim_len = strlen (delim);
size_t len = strlen (str);
size_t pos = 0;
while (pos < len) {
if (str_starts_with (&str[pos], delim) && delim_len > 0) {
pos += delim_len;
// never add empty strings (repeated tokens)
if (string_buffer_size (sb) > 0) {
char *part = string_buffer_to_string (sb);
zarray_add (parts, &part);
}
string_buffer_reset (sb);
}
else {
string_buffer_append (sb, str[pos]);
pos++;
}
}
if (string_buffer_size(sb) > 0) {
char *part = string_buffer_to_string (sb);
zarray_add (parts, &part);
}
string_buffer_destroy (sb);
return parts;
}
