MIRROR: javascript for 🐜's, a tiny runtime with big ambitions
minor server.c perf tweaks
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src/http/http1_writer.c
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-7
src/http/http1_writer.c
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#pragma GCC diagnostic ignored "-Wformat-nonliteral"
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bool ant_http1_buffer_appendfv(ant_http1_buffer_t *buf, const char *fmt, va_list ap) {
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char stack[256];
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va_list ap_copy;
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int written;
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if (!buf || buf->failed) return false;
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va_copy(ap_copy, ap);
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written = vsnprintf(NULL, 0, fmt, ap_copy);
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written = vsnprintf(stack, sizeof(stack), fmt, ap_copy);
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va_end(ap_copy);
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if (written < 0) {
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buf->failed = true;
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return false;
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}
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if (!ant_http1_buffer_reserve(buf, (size_t)written)) return false;
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written = vsnprintf(buf->data + buf->len, buf->cap - buf->len, fmt, ap);
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if (written < 0) {
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buf->failed = true;
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return false;
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}
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if ((size_t)written < sizeof(stack))
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return ant_http1_buffer_append(buf, stack, (size_t)written);
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if (!ant_http1_buffer_reserve(buf, (size_t)written + 1)) return false;
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vsnprintf(buf->data + buf->len, buf->cap - buf->len, fmt, ap);
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buf->len += (size_t)written;
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return true;
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}
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