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HACKING: add memory management rules

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Add memory management rules, somewhat like libvirt HACKING.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2010-09-10 18:52:52 +00:00
parent 84174436a6
commit 54b2cc5030
1 changed files with 14 additions and 0 deletions
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@ -72,3 +72,17 @@ Typedefs are used to eliminate the redundant 'struct' keyword.
2.4. Reserved namespaces in C and POSIX
Underscore capital, double underscore, and underscore 't' suffixes should be
avoided.
3. Low level memory management
Use of the malloc/free/realloc/calloc/valloc/memalign/posix_memalign
APIs is not allowed in the QEMU codebase. Instead of these routines,
use the replacement qemu_malloc/qemu_mallocz/qemu_realloc/qemu_free or
qemu_vmalloc/qemu_memalign/qemu_vfree APIs.
Please note that NULL check for the qemu_malloc result is redundant and
that qemu_malloc() call with zero size is not allowed.
Memory allocated by qemu_vmalloc or qemu_memalign must be freed with
qemu_vfree, since breaking this will cause problems on Win32 and user
emulators.