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-rw-r--r--src/mem.c281
1 files changed, 142 insertions, 139 deletions
diff --git a/src/mem.c b/src/mem.c
index 8889cc0..a351818 100644
--- a/src/mem.c
+++ b/src/mem.c
@@ -44,10 +44,10 @@
#ifdef CALCURSE_MEMORY_DEBUG
enum {
- BLK_STATE,
- BLK_SIZE,
- BLK_ID,
- EXTRA_SPACE_START
+ BLK_STATE,
+ BLK_SIZE,
+ BLK_ID,
+ EXTRA_SPACE_START
};
#define EXTRA_SPACE_END 1
@@ -57,14 +57,14 @@ enum {
#define MAGIC_FREE 0xdf
struct mem_blk {
- unsigned id, size;
- const char *pos;
- struct mem_blk *next;
+ unsigned id, size;
+ const char *pos;
+ struct mem_blk *next;
};
struct mem_stats {
- unsigned ncall, nalloc, nfree;
- struct mem_blk *blk;
+ unsigned ncall, nalloc, nfree;
+ struct mem_blk *blk;
};
static struct mem_stats mstats;
@@ -73,229 +73,232 @@ static struct mem_stats mstats;
void *xmalloc(size_t size)
{
- void *p;
+ void *p;
- EXIT_IF(size == 0, _("xmalloc: zero size"));
- p = malloc(size);
- EXIT_IF(p == NULL, _("xmalloc: out of memory"));
+ EXIT_IF(size == 0, _("xmalloc: zero size"));
+ p = malloc(size);
+ EXIT_IF(p == NULL, _("xmalloc: out of memory"));
- return p;
+ return p;
}
void *xcalloc(size_t nmemb, size_t size)
{
- void *p;
+ void *p;
- EXIT_IF(nmemb == 0 || size == 0, _("xcalloc: zero size"));
- EXIT_IF(SIZE_MAX / nmemb < size, _("xcalloc: overflow"));
- p = calloc(nmemb, size);
- EXIT_IF(p == NULL, _("xcalloc: out of memory"));
+ EXIT_IF(nmemb == 0 || size == 0, _("xcalloc: zero size"));
+ EXIT_IF(SIZE_MAX / nmemb < size, _("xcalloc: overflow"));
+ p = calloc(nmemb, size);
+ EXIT_IF(p == NULL, _("xcalloc: out of memory"));
- return p;
+ return p;
}
void *xrealloc(void *ptr, size_t nmemb, size_t size)
{
- void *new_ptr;
- size_t new_size;
+ void *new_ptr;
+ size_t new_size;
- new_size = nmemb * size;
- EXIT_IF(new_size == 0, _("xrealloc: zero size"));
- EXIT_IF(SIZE_MAX / nmemb < size, _("xrealloc: overflow"));
- new_ptr = realloc(ptr, new_size);
- EXIT_IF(new_ptr == NULL, _("xrealloc: out of memory"));
+ new_size = nmemb * size;
+ EXIT_IF(new_size == 0, _("xrealloc: zero size"));
+ EXIT_IF(SIZE_MAX / nmemb < size, _("xrealloc: overflow"));
+ new_ptr = realloc(ptr, new_size);
+ EXIT_IF(new_ptr == NULL, _("xrealloc: out of memory"));
- return new_ptr;
+ return new_ptr;
}
char *xstrdup(const char *str)
{
- size_t len;
- char *cp;
+ size_t len;
+ char *cp;
- len = strlen(str) + 1;
- cp = xmalloc(len);
+ len = strlen(str) + 1;
+ cp = xmalloc(len);
- return strncpy(cp, str, len);
+ return strncpy(cp, str, len);
}
void xfree(void *p)
{
- EXIT_IF(p == NULL, _("xfree: null pointer"));
- free(p);
+ EXIT_IF(p == NULL, _("xfree: null pointer"));
+ free(p);
}
#ifdef CALCURSE_MEMORY_DEBUG
static unsigned stats_add_blk(size_t size, const char *pos)
{
- struct mem_blk *o, **i;
+ struct mem_blk *o, **i;
- o = malloc(sizeof(*o));
- EXIT_IF(o == NULL, _("could not allocate memory to store block info"));
+ o = malloc(sizeof(*o));
+ EXIT_IF(o == NULL,
+ _("could not allocate memory to store block info"));
- mstats.ncall++;
+ mstats.ncall++;
- o->pos = pos;
- o->size = (unsigned)size;
- o->next = 0;
+ o->pos = pos;
+ o->size = (unsigned)size;
+ o->next = 0;
- for (i = &mstats.blk; *i; i = &(*i)->next) ;
- o->id = mstats.ncall;
- *i = o;
+ for (i = &mstats.blk; *i; i = &(*i)->next) ;
+ o->id = mstats.ncall;
+ *i = o;
- return o->id;
+ return o->id;
}
static void stats_del_blk(unsigned id)
{
- struct mem_blk *o, **i;
-
- i = &mstats.blk;
- for (o = mstats.blk; o; o = o->next) {
- if (o->id == id) {
- *i = o->next;
- free(o);
- return;
- }
- i = &o->next;
- }
-
- EXIT(_("Block not found"));
- /* NOTREACHED */
+ struct mem_blk *o, **i;
+
+ i = &mstats.blk;
+ for (o = mstats.blk; o; o = o->next) {
+ if (o->id == id) {
+ *i = o->next;
+ free(o);
+ return;
+ }
+ i = &o->next;
+ }
+
+ EXIT(_("Block not found"));
+ /* NOTREACHED */
}
void *dbg_malloc(size_t size, const char *pos)
{
- unsigned *buf;
+ unsigned *buf;
- if (size == 0)
- return NULL;
+ if (size == 0)
+ return NULL;
- size = EXTRA_SPACE + (size + sizeof(unsigned) - 1) / sizeof(unsigned);
- buf = xmalloc(size * sizeof(unsigned));
+ size =
+ EXTRA_SPACE + (size + sizeof(unsigned) - 1) / sizeof(unsigned);
+ buf = xmalloc(size * sizeof(unsigned));
- buf[BLK_STATE] = MAGIC_ALLOC; /* state of the block */
- buf[BLK_SIZE] = size; /* size of the block */
- buf[BLK_ID] = stats_add_blk(size, pos); /* identify a block by its id */
- buf[size - 1] = buf[BLK_ID]; /* mark at end of block */
+ buf[BLK_STATE] = MAGIC_ALLOC; /* state of the block */
+ buf[BLK_SIZE] = size; /* size of the block */
+ buf[BLK_ID] = stats_add_blk(size, pos); /* identify a block by its id */
+ buf[size - 1] = buf[BLK_ID]; /* mark at end of block */
- mstats.nalloc += size;
+ mstats.nalloc += size;
- return (void *)(buf + EXTRA_SPACE_START);
+ return (void *)(buf + EXTRA_SPACE_START);
}
void *dbg_calloc(size_t nmemb, size_t size, const char *pos)
{
- void *buf;
+ void *buf;
- if (!nmemb || !size)
- return NULL;
+ if (!nmemb || !size)
+ return NULL;
- EXIT_IF(nmemb > SIZE_MAX / size, _("overflow at %s"), pos);
+ EXIT_IF(nmemb > SIZE_MAX / size, _("overflow at %s"), pos);
- size *= nmemb;
- if ((buf = dbg_malloc(size, pos)) == NULL)
- return NULL;
+ size *= nmemb;
+ if ((buf = dbg_malloc(size, pos)) == NULL)
+ return NULL;
- memset(buf, 0, size);
+ memset(buf, 0, size);
- return buf;
+ return buf;
}
void *dbg_realloc(void *ptr, size_t nmemb, size_t size, const char *pos)
{
- unsigned *buf, old_size, new_size, cpy_size;
+ unsigned *buf, old_size, new_size, cpy_size;
- if (ptr == NULL)
- return NULL;
+ if (ptr == NULL)
+ return NULL;
- new_size = nmemb * size;
- if (new_size == 0)
- return NULL;
+ new_size = nmemb * size;
+ if (new_size == 0)
+ return NULL;
- EXIT_IF(nmemb > SIZE_MAX / size, _("overflow at %s"), pos);
+ EXIT_IF(nmemb > SIZE_MAX / size, _("overflow at %s"), pos);
- if ((buf = dbg_malloc(new_size, pos)) == NULL)
- return NULL;
+ if ((buf = dbg_malloc(new_size, pos)) == NULL)
+ return NULL;
- old_size = *((unsigned *)ptr - EXTRA_SPACE_START + BLK_SIZE);
- cpy_size = (old_size > new_size) ? new_size : old_size;
- memmove(buf, ptr, cpy_size);
+ old_size = *((unsigned *)ptr - EXTRA_SPACE_START + BLK_SIZE);
+ cpy_size = (old_size > new_size) ? new_size : old_size;
+ memmove(buf, ptr, cpy_size);
- mem_free(ptr);
+ mem_free(ptr);
- return (void *)buf;
+ return (void *)buf;
}
char *dbg_strdup(const char *s, const char *pos)
{
- size_t size;
- char *buf;
+ size_t size;
+ char *buf;
- if (s == NULL)
- return NULL;
+ if (s == NULL)
+ return NULL;
- size = strlen(s);
- if ((buf = dbg_malloc(size + 1, pos)) == NULL)
- return NULL;
+ size = strlen(s);
+ if ((buf = dbg_malloc(size + 1, pos)) == NULL)
+ return NULL;
- return strncpy(buf, s, size + 1);
+ return strncpy(buf, s, size + 1);
}
void dbg_free(void *ptr, const char *pos)
{
- unsigned *buf, size;
+ unsigned *buf, size;
- EXIT_IF(ptr == NULL, _("dbg_free: null pointer at %s"), pos);
+ EXIT_IF(ptr == NULL, _("dbg_free: null pointer at %s"), pos);
- buf = (unsigned *)ptr - EXTRA_SPACE_START;
- size = buf[BLK_SIZE];
+ buf = (unsigned *)ptr - EXTRA_SPACE_START;
+ size = buf[BLK_SIZE];
- EXIT_IF(buf[BLK_STATE] == MAGIC_FREE,
- _("block seems already freed at %s"), pos);
- EXIT_IF(buf[BLK_STATE] != MAGIC_ALLOC, _("corrupt block header at %s"), pos);
- EXIT_IF(buf[size - 1] != buf[BLK_ID],
- _("corrupt block end at %s, (end = %u, should be %d)"), pos,
- buf[size - 1], buf[BLK_ID]);
+ EXIT_IF(buf[BLK_STATE] == MAGIC_FREE,
+ _("block seems already freed at %s"), pos);
+ EXIT_IF(buf[BLK_STATE] != MAGIC_ALLOC,
+ _("corrupt block header at %s"), pos);
+ EXIT_IF(buf[size - 1] != buf[BLK_ID],
+ _("corrupt block end at %s, (end = %u, should be %d)"),
+ pos, buf[size - 1], buf[BLK_ID]);
- buf[0] = MAGIC_FREE;
+ buf[0] = MAGIC_FREE;
- stats_del_blk(buf[BLK_ID]);
+ stats_del_blk(buf[BLK_ID]);
- free(buf);
- mstats.nfree += size;
+ free(buf);
+ mstats.nfree += size;
}
static void dump_block_info(struct mem_blk *blk)
{
- if (blk == NULL)
- return;
-
- puts(_("---==== MEMORY BLOCK ====----------------\n"));
- printf(_(" id: %u\n"), blk->id);
- printf(_(" size: %u\n"), blk->size);
- printf(_(" allocated in: %s\n"), blk->pos);
- puts(_("-----------------------------------------\n"));
+ if (blk == NULL)
+ return;
+
+ puts(_("---==== MEMORY BLOCK ====----------------\n"));
+ printf(_(" id: %u\n"), blk->id);
+ printf(_(" size: %u\n"), blk->size);
+ printf(_(" allocated in: %s\n"), blk->pos);
+ puts(_("-----------------------------------------\n"));
}
void mem_stats(void)
{
- putchar('\n');
- puts(_("+------------------------------+\n"));
- puts(_("| calcurse memory usage report |\n"));
- puts(_("+------------------------------+\n"));
- printf(_(" number of calls: %u\n"), mstats.ncall);
- printf(_(" allocated blocks: %u\n"), mstats.nalloc);
- printf(_(" unfreed blocks: %u\n"), mstats.nalloc - mstats.nfree);
- putchar('\n');
-
- if (mstats.nfree < mstats.nalloc) {
- struct mem_blk *blk;
-
- for (blk = mstats.blk; blk; blk = blk->next)
- dump_block_info(blk);
- }
+ putchar('\n');
+ puts(_("+------------------------------+\n"));
+ puts(_("| calcurse memory usage report |\n"));
+ puts(_("+------------------------------+\n"));
+ printf(_(" number of calls: %u\n"), mstats.ncall);
+ printf(_(" allocated blocks: %u\n"), mstats.nalloc);
+ printf(_(" unfreed blocks: %u\n"), mstats.nalloc - mstats.nfree);
+ putchar('\n');
+
+ if (mstats.nfree < mstats.nalloc) {
+ struct mem_blk *blk;
+
+ for (blk = mstats.blk; blk; blk = blk->next)
+ dump_block_info(blk);
+ }
}
#endif /* CALCURSE_MEMORY_DEBUG */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 06:42:40 +0000