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-rw-r--r--src/buffer.c73
-rw-r--r--src/buffer.h56
2 files changed, 32 insertions, 97 deletions
diff --git a/src/buffer.c b/src/buffer.c
index cb6af42..e2ebc02 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -13,11 +13,10 @@
* assume ptr is non-NULL and zero terminated even for new cmark_strbufs.
*/
unsigned char cmark_strbuf__initbuf[1];
-unsigned char cmark_strbuf__oom[1];
-#define ENSURE_SIZE(b, d) \
- if ((d) > b->asize && cmark_strbuf_grow(b, (d)) < 0) \
- return -1;
+#define ENSURE_SIZE(b, d) \
+ if ((d) > b->asize) \
+ cmark_strbuf_grow(b, (d)); \
#ifndef MIN
#define MIN(x,y) ((x<y) ? x : y)
@@ -33,16 +32,13 @@ void cmark_strbuf_init(cmark_strbuf *buf, int initial_size)
cmark_strbuf_grow(buf, initial_size);
}
-int cmark_strbuf_try_grow(cmark_strbuf *buf, int target_size, bool mark_oom)
+void cmark_strbuf_grow(cmark_strbuf *buf, int target_size)
{
unsigned char *new_ptr;
int new_size;
- if (buf->ptr == cmark_strbuf__oom)
- return -1;
-
if (target_size <= buf->asize)
- return 0;
+ return;
if (buf->asize == 0) {
new_size = target_size;
@@ -63,9 +59,8 @@ int cmark_strbuf_try_grow(cmark_strbuf *buf, int target_size, bool mark_oom)
new_ptr = (unsigned char *)realloc(new_ptr, new_size);
if (!new_ptr) {
- if (mark_oom)
- buf->ptr = cmark_strbuf__oom;
- return -1;
+ perror("realloc in cmark_strbuf_grow");
+ abort();
}
buf->asize = new_size;
@@ -75,18 +70,6 @@ int cmark_strbuf_try_grow(cmark_strbuf *buf, int target_size, bool mark_oom)
if (buf->size >= buf->asize)
buf->size = buf->asize - 1;
buf->ptr[buf->size] = '\0';
-
- return 0;
-}
-
-int cmark_strbuf_grow(cmark_strbuf *buf, int target_size)
-{
- return cmark_strbuf_try_grow(buf, target_size, true);
-}
-
-bool cmark_strbuf_oom(const cmark_strbuf *buf)
-{
- return (buf->ptr == cmark_strbuf__oom);
}
size_t cmark_strbuf_len(const cmark_strbuf *buf)
@@ -98,7 +81,7 @@ void cmark_strbuf_free(cmark_strbuf *buf)
{
if (!buf) return;
- if (buf->ptr != cmark_strbuf__initbuf && buf->ptr != cmark_strbuf__oom)
+ if (buf->ptr != cmark_strbuf__initbuf)
free(buf->ptr);
cmark_strbuf_init(buf, 0);
@@ -112,7 +95,7 @@ void cmark_strbuf_clear(cmark_strbuf *buf)
buf->ptr[0] = '\0';
}
-int cmark_strbuf_set(cmark_strbuf *buf, const unsigned char *data, int len)
+void cmark_strbuf_set(cmark_strbuf *buf, const unsigned char *data, int len)
{
if (len <= 0 || data == NULL) {
cmark_strbuf_clear(buf);
@@ -124,42 +107,38 @@ int cmark_strbuf_set(cmark_strbuf *buf, const unsigned char *data, int len)
buf->size = len;
buf->ptr[buf->size] = '\0';
}
- return 0;
}
-int cmark_strbuf_sets(cmark_strbuf *buf, const char *string)
+void cmark_strbuf_sets(cmark_strbuf *buf, const char *string)
{
- return cmark_strbuf_set(buf,
- (const unsigned char *)string,
- string ? strlen(string) : 0);
+ cmark_strbuf_set(buf, (const unsigned char *)string,
+ string ? strlen(string) : 0);
}
-int cmark_strbuf_putc(cmark_strbuf *buf, int c)
+void cmark_strbuf_putc(cmark_strbuf *buf, int c)
{
ENSURE_SIZE(buf, buf->size + 2);
buf->ptr[buf->size++] = c;
buf->ptr[buf->size] = '\0';
- return 0;
}
-int cmark_strbuf_put(cmark_strbuf *buf, const unsigned char *data, int len)
+void cmark_strbuf_put(cmark_strbuf *buf, const unsigned char *data, int len)
{
if (len <= 0)
- return 0;
+ return;
ENSURE_SIZE(buf, buf->size + len + 1);
memmove(buf->ptr + buf->size, data, len);
buf->size += len;
buf->ptr[buf->size] = '\0';
- return 0;
}
-int cmark_strbuf_puts(cmark_strbuf *buf, const char *string)
+void cmark_strbuf_puts(cmark_strbuf *buf, const char *string)
{
- return cmark_strbuf_put(buf, (const unsigned char *)string, strlen(string));
+ cmark_strbuf_put(buf, (const unsigned char *)string, strlen(string));
}
-int cmark_strbuf_vprintf(cmark_strbuf *buf, const char *format, va_list ap)
+void cmark_strbuf_vprintf(cmark_strbuf *buf, const char *format, va_list ap)
{
const int expected_size = buf->size + (strlen(format) * 2);
int len;
@@ -185,9 +164,8 @@ int cmark_strbuf_vprintf(cmark_strbuf *buf, const char *format, va_list ap)
va_end(args);
if (len < 0) {
- free(buf->ptr);
- buf->ptr = cmark_strbuf__oom;
- return -1;
+ perror("vsnprintf in cmark_strbuf_vprintf");
+ abort();
}
if (len + 1 <= buf->asize - buf->size) {
@@ -197,20 +175,15 @@ int cmark_strbuf_vprintf(cmark_strbuf *buf, const char *format, va_list ap)
ENSURE_SIZE(buf, buf->size + len + 1);
}
-
- return 0;
}
-int cmark_strbuf_printf(cmark_strbuf *buf, const char *format, ...)
+void cmark_strbuf_printf(cmark_strbuf *buf, const char *format, ...)
{
- int r;
va_list ap;
va_start(ap, format);
- r = cmark_strbuf_vprintf(buf, format, ap);
+ cmark_strbuf_vprintf(buf, format, ap);
va_end(ap);
-
- return r;
}
void cmark_strbuf_copy_cstr(char *data, int datasize, const cmark_strbuf *buf)
@@ -242,7 +215,7 @@ unsigned char *cmark_strbuf_detach(cmark_strbuf *buf)
{
unsigned char *data = buf->ptr;
- if (buf->asize == 0 || buf->ptr == cmark_strbuf__oom) {
+ if (buf->asize == 0) {
/* return an empty string */
return (unsigned char *)calloc(1, 1);
}
diff --git a/src/buffer.h b/src/buffer.h
index fb9f910..417df26 100644
--- a/src/buffer.h
+++ b/src/buffer.h
@@ -16,8 +16,6 @@ typedef struct {
extern unsigned char cmark_strbuf__initbuf[];
-extern unsigned char cmark_strbuf__oom[];
-
#define GH_BUF_INIT { cmark_strbuf__initbuf, 0, 0 }
/**
@@ -29,41 +27,13 @@ extern unsigned char cmark_strbuf__oom[];
void cmark_strbuf_init(cmark_strbuf *buf, int initial_size);
/**
- * Attempt to grow the buffer to hold at least `target_size` bytes.
- *
- * If the allocation fails, this will return an error. If mark_oom is true,
- * this will mark the buffer as invalid for future operations; if false,
- * existing buffer content will be preserved, but calling code must handle
- * that buffer was not expanded.
- */
-int cmark_strbuf_try_grow(cmark_strbuf *buf, int target_size, bool mark_oom);
-
-/**
* Grow the buffer to hold at least `target_size` bytes.
- *
- * If the allocation fails, this will return an error and the buffer will be
- * marked as invalid for future operations, invaliding contents.
- *
- * @return 0 on success or -1 on failure
*/
-int cmark_strbuf_grow(cmark_strbuf *buf, int target_size);
+void cmark_strbuf_grow(cmark_strbuf *buf, int target_size);
void cmark_strbuf_free(cmark_strbuf *buf);
void cmark_strbuf_swap(cmark_strbuf *buf_a, cmark_strbuf *buf_b);
-/**
- * Test if there have been any reallocation failures with this cmark_strbuf.
- *
- * Any function that writes to a cmark_strbuf can fail due to memory allocation
- * issues. If one fails, the cmark_strbuf will be marked with an OOM error and
- * further calls to modify the buffer will fail. Check cmark_strbuf_oom() at the
- * end of your sequence and it will be true if you ran out of memory at any
- * point with that buffer.
- *
- * @return false if no error, true if allocation error
- */
-bool cmark_strbuf_oom(const cmark_strbuf *buf);
-
size_t cmark_strbuf_len(const cmark_strbuf *buf);
int cmark_strbuf_cmp(const cmark_strbuf *a, const cmark_strbuf *b);
@@ -79,22 +49,14 @@ static inline const char *cmark_strbuf_cstr(const cmark_strbuf *buf)
#define cmark_strbuf_at(buf, n) ((buf)->ptr[n])
-/*
- * Functions below that return int value error codes will return 0 on
- * success or -1 on failure (which generally means an allocation failed).
- * Using a cmark_strbuf where the allocation has failed with result in -1 from
- * all further calls using that buffer. As a result, you can ignore the
- * return code of these functions and call them in a series then just call
- * cmark_strbuf_oom at the end.
- */
-int cmark_strbuf_set(cmark_strbuf *buf, const unsigned char *data, int len);
-int cmark_strbuf_sets(cmark_strbuf *buf, const char *string);
-int cmark_strbuf_putc(cmark_strbuf *buf, int c);
-int cmark_strbuf_put(cmark_strbuf *buf, const unsigned char *data, int len);
-int cmark_strbuf_puts(cmark_strbuf *buf, const char *string);
-int cmark_strbuf_printf(cmark_strbuf *buf, const char *format, ...)
-CMARK_ATTRIBUTE((format (printf, 2, 3)));
-int cmark_strbuf_vprintf(cmark_strbuf *buf, const char *format, va_list ap);
+void cmark_strbuf_set(cmark_strbuf *buf, const unsigned char *data, int len);
+void cmark_strbuf_sets(cmark_strbuf *buf, const char *string);
+void cmark_strbuf_putc(cmark_strbuf *buf, int c);
+void cmark_strbuf_put(cmark_strbuf *buf, const unsigned char *data, int len);
+void cmark_strbuf_puts(cmark_strbuf *buf, const char *string);
+void cmark_strbuf_printf(cmark_strbuf *buf, const char *format, ...)
+ CMARK_ATTRIBUTE((format (printf, 2, 3)));
+void cmark_strbuf_vprintf(cmark_strbuf *buf, const char *format, va_list ap);
void cmark_strbuf_clear(cmark_strbuf *buf);
int cmark_strbuf_strchr(const cmark_strbuf *buf, int c, int pos);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 11:24:36 +0000