Added test for variadic arguments

[xonotic/gmqcc.git] / util.c

diff --git a/util.c b/util.c
index e814ce646a33397179e8dcd52c503300636270c9..a900889e57b90f983d776c44326e02935d9eee7b 100644 (file)
--- a/util.c
+++ b/util.c
@@ -32,14 +32,14 @@ uint64_t mem_dt = 0;
 struct memblock_t {
     const char  *file;
     unsigned int line;
-    unsigned int byte;
+    size_t       byte;
     struct memblock_t *next;
     struct memblock_t *prev;
 };
 
 static struct memblock_t *mem_start = NULL;
 
-void *util_memory_a(unsigned int byte, unsigned int line, const char *file) {
+void *util_memory_a(size_t byte, unsigned int line, const char *file) {
     struct memblock_t *info = malloc(sizeof(struct memblock_t) + byte);
     void              *data = (void*)(info+1);
     if (!info) return NULL;
@@ -79,16 +79,20 @@ void util_memory_d(void *ptrn, unsigned int line, const char *file) {
     free(info);
 }
 
-void *util_memory_r(void *ptrn, unsigned int byte, unsigned int line, const char *file) {
+void *util_memory_r(void *ptrn, size_t byte, unsigned int line, const char *file) {
     struct memblock_t *oldinfo = NULL;
 
     struct memblock_t *newinfo;
 
     if (!ptrn)
         return util_memory_a(byte, line, file);
+    if (!byte) {
+        util_memory_d(ptrn, line, file);
+        return NULL;
+    }
 
     oldinfo = ((struct memblock_t*)ptrn - 1);
-    newinfo = malloc(sizeof(struct memblock_t) + byte);
+    newinfo = ((struct memblock_t*)malloc(sizeof(struct memblock_t) + byte));
 
     util_debug("MEM", "reallocation: % 8u -> %u (bytes) address 0x%08X -> 0x%08X @ %s:%u\n", oldinfo->byte, byte, ptrn, (void*)(newinfo+1), file, line);
 
@@ -97,23 +101,33 @@ void *util_memory_r(void *ptrn, unsigned int byte, unsigned int line, const char
         util_memory_d(oldinfo+1, line, file);
         return NULL;
     }
+
+    /* copy old */
+    memcpy(newinfo+1, oldinfo+1, oldinfo->byte);
+
+    /* free old */
+    if (oldinfo->prev)
+        oldinfo->prev->next = oldinfo->next;
+    if (oldinfo->next)
+        oldinfo->next->prev = oldinfo->prev;
+    if (oldinfo == mem_start)
+        mem_start = oldinfo->next;
+
+    /* fill info */
     newinfo->line = line;
     newinfo->byte = byte;
     newinfo->file = file;
-    newinfo->next = oldinfo->next;
-    newinfo->prev = oldinfo->prev;
-    if (mem_start == oldinfo)
-        mem_start = newinfo;
+    newinfo->prev = NULL;
+    newinfo->next = mem_start;
+    if (mem_start)
+        mem_start->prev = newinfo;
+    mem_start = newinfo;
 
-    /* copy old */
-    memcpy(newinfo+1, oldinfo+1, oldinfo->byte);
+    mem_ab -= oldinfo->byte;
+    mem_ab += newinfo->byte;
 
-    /* drop old */
-    mem_db += newinfo->byte;
-    mem_db -= oldinfo->byte;
     free(oldinfo);
 
-    /* update */
     return newinfo+1;
 }
 
@@ -238,11 +252,8 @@ void util_debug(const char *area, const char *ms, ...) {
         return;
 
     va_start(va, ms);
-    fprintf (stdout, "DEBUG: ");
-    fputc   ('[',  stdout);
-    fprintf(stdout, "%s", area);
-    fputs   ("] ", stdout);
-    vfprintf(stdout, ms, va);
+    con_out ("[%s] ", area);
+    con_vout(ms, va); 
     va_end  (va);
 }
 
@@ -510,3 +521,20 @@ FILE *util_fopen(const char *filename, const char *mode)
 #endif
 }
 
+bool util_filexists(const char *file) {
+    FILE *fp = fopen(file, "rb");
+    if  (!fp) return false;
+    
+    /* it exists */
+    fclose(fp);
+    return true;
+}
+
+void _util_vec_grow(void **a, size_t i, size_t s) {
+    size_t m = *a ? 2*_vec_beg(*a)+i : i+1;
+    void  *p = mem_r((*a ? _vec_raw(*a) : NULL), s * m + sizeof(size_t)*2);
+    if (!*a)
+        ((size_t*)p)[1] = 0;
+    *a = (void*)((size_t*)p + 2);
+    _vec_beg(*a) = m;
+}