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Merge pull request #1296 from kyab/fallback-for-crc-buffer

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Add fallback for allocate CRC buffer
This commit is contained in:
Yukihiro "Matz" Matsumoto
2013-06-21 15:56:49 -07:00
parent 31b3e3cfec 31fbfb51db
commit 8cb730ae4e
1 changed files with 7 additions and 2 deletions
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src/load.c
+7 -2
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@@ -539,7 +539,9 @@ mrb_read_irep_file(mrb_state *mrb, FILE* fp)
size_t sirep;
struct rite_section_header section_header;
long fpos;
const size_t block_size = 1 << 14;
size_t block_size = 1 << 14;
const uint8_t block_fallback_count = 4;
int i;
const size_t buf_size = sizeof(struct rite_binary_header);
if ((mrb == NULL) || (fp == NULL)) {
@@ -564,7 +566,10 @@ mrb_read_irep_file(mrb_state *mrb, FILE* fp)
/* verify CRC */
fpos = ftell(fp);
/* You don't need use SIZE_ERROR as block_size is enough small. */
buf = mrb_malloc(mrb, block_size);
for (i = 0; i < block_fallback_count; i++,block_size >>= 1){
buf = mrb_malloc(mrb, block_size);
if (buf) break;
}
if (!buf) {
return MRB_DUMP_GENERAL_FAILURE;
}