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FFstrbuf: improve performance of InitF

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This commit is contained in:
李通洲
2022-12-06 16:26:51 +08:00
parent 4f0be4f72c
commit 983bd50a09
3 changed files with 25 additions and 5 deletions
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src/util/FFstrbuf.c
+17 -5
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@@ -26,14 +26,23 @@ void ffStrbufInitF(FFstrbuf* strbuf, const char* format, ...)
{
assert(format != NULL);
ffStrbufInit(strbuf);
va_list arguments;
va_start(arguments, format);
ffStrbufAppendVF(strbuf, format, arguments);
ffStrbufInitVF(strbuf, format, arguments);
va_end(arguments);
}
void ffStrbufInitVF(FFstrbuf* strbuf, const char* format, va_list arguments)
{
assert(format != NULL);
int len = vasprintf(&strbuf->chars, format, arguments);
assert(len >= 0);
strbuf->allocated = (uint32_t)(len + 1);
strbuf->length = (uint32_t)len;
}
uint32_t ffStrbufGetFree(const FFstrbuf* strbuf)
{
assert(strbuf != NULL);
@@ -168,10 +177,13 @@ void ffStrbufSetF(FFstrbuf* strbuf, const char* format, ...)
{
assert(format != NULL);
ffStrbufClear(strbuf);
va_list arguments;
va_start(arguments, format);
if(strbuf->allocated == 0)
return ffStrbufInitVF(strbuf, format, arguments);
ffStrbufClear(strbuf);
ffStrbufAppendVF(strbuf, format, arguments);
va_end(arguments);
}