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Add spice_chunks_* helpers

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This commit is contained in:
Alexander Larsson 2010-07-06 14:39:15 +02:00 committed by Marc-André Lureau
parent 09d9a18702
commit 8f568a4073
2 changed files with 64 additions and 0 deletions
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59
common/mem.c
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@ -178,3 +178,62 @@ void *spice_realloc_n(void *mem, size_t n_blocks, size_t n_block_bytes)
return spice_realloc(mem, n_blocks * n_block_bytes);
}
SpiceChunks *spice_chunks_new(uint32_t count)
{
SpiceChunks *chunks;
chunks = (SpiceChunks *)spice_malloc_n_m(count, sizeof(SpiceChunk), sizeof(SpiceChunks));
chunks->flags = 0;
chunks->num_chunks = count;
return chunks;
}
SpiceChunks *spice_chunks_new_linear(uint8_t *data, uint32_t len)
{
SpiceChunks *chunks;
chunks = spice_chunks_new(1);
chunks->data_size = chunks->chunk[0].len = len;
chunks->chunk[0].data = data;
return chunks;
}
void spice_chunks_destroy(SpiceChunks *chunks)
{
int i;
if (chunks->flags & SPICE_CHUNKS_FLAGS_FREE) {
for (i = 0; i < chunks->num_chunks; i++) {
free(chunks->chunk[i].data);
}
}
free(chunks);
}
void spice_chunks_linearize(SpiceChunks *chunks)
{
uint8_t *data, *p;
int i;
if (chunks->num_chunks > 1) {
data = (uint8_t*)spice_malloc(chunks->data_size);
for (p = data, i = 0; i < chunks->num_chunks; i++) {
memcpy(p, chunks->chunk[i].data,
chunks->chunk[i].len);
p += chunks->chunk[i].len;
}
if (chunks->flags & SPICE_CHUNKS_FLAGS_FREE) {
for (i = 0; i < chunks->num_chunks; i++) {
free(chunks->chunk[i].data);
}
}
chunks->num_chunks = 1;
chunks->flags |= SPICE_CHUNKS_FLAGS_FREE;
chunks->flags &= ~SPICE_CHUNKS_FLAGS_UNSTABLE;
chunks->chunk[0].data = data;
chunks->chunk[0].len = chunks->data_size;
}
}

5
common/mem.h
View File

@ -21,6 +21,7 @@
#include <stdlib.h>
#include <spice/macros.h>
#include <spice/draw.h> /* for SpiceChunks, temporary */
char *spice_strdup(const char *str) SPICE_GNUC_MALLOC;
char *spice_strndup(const char *str, size_t n_bytes) SPICE_GNUC_MALLOC;
@ -32,6 +33,10 @@ void *spice_malloc_n(size_t n_blocks, size_t n_block_bytes) SPICE_GNUC_MALLOC SP
void *spice_malloc_n_m(size_t n_blocks, size_t n_block_bytes, size_t extra_size) SPICE_GNUC_MALLOC;
void *spice_malloc0_n(size_t n_blocks, size_t n_block_bytes) SPICE_GNUC_MALLOC SPICE_GNUC_ALLOC_SIZE2(1,2);
void *spice_realloc_n(void *mem, size_t n_blocks, size_t n_block_bytes) SPICE_GNUC_WARN_UNUSED_RESULT;
SpiceChunks *spice_chunks_new(uint32_t count) SPICE_GNUC_MALLOC;
SpiceChunks *spice_chunks_new_linear(uint8_t *data, uint32_t len) SPICE_GNUC_MALLOC;
void spice_chunks_destroy(SpiceChunks *chunks);
void spice_chunks_linearize(SpiceChunks *chunks);
size_t spice_strnlen(const char *str, size_t max_len);