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Buflib: Clarification about invalid handles

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* Enhance allocation function comments to better state the return value and what an invalid value is
* Change clients to check for "< 0" instead of "<= 0" or "== 0"
* Return -1 or -2 depending on the exact failure in buflib_alloc_ex.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30469 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2011-09-07 23:16:29 +00:00
parent 6a989b8d4d
commit 5296af838c
5 changed files with 15 additions and 10 deletions
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2
apps/filetypes.c
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@ -344,7 +344,7 @@ void filetype_init(void)
strdup_bufsize = filesize(fd);
strdup_handle = core_alloc_ex("filetypes", strdup_bufsize, &ops);
if (strdup_handle <= 0)
if (strdup_handle < 0)
return;
read_builtin_types();
read_config(fd);