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arch_init: Add and free data struct for decompression 

Define the data structure and variables used to do multiple thread
decompression, and add the code to initialize and free them.

Signed-off-by: Liang Li <liang.z.li@intel.com>
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Reviewed-by: Dr.David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Liang Li 2015-03-23 16:32:21 +08:00 committed by Juan Quintela
parent 474ddaf6e3
commit 3caf633dbd
1 changed files with 12 additions and 1 deletions
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13
arch_init.c
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@ -330,7 +330,12 @@ struct CompressParam {
typedef struct CompressParam CompressParam;
struct DecompressParam {
/* To be done */
bool start;
QemuMutex mutex;
QemuCond cond;
void *des;
uint8 *compbuf;
int len;
};
typedef struct DecompressParam DecompressParam;
@ -1266,6 +1271,9 @@ void migrate_decompress_threads_create(void)
compressed_data_buf = g_malloc0(compressBound(TARGET_PAGE_SIZE));
quit_decomp_thread = false;
for (i = 0; i < thread_count; i++) {
qemu_mutex_init(&decomp_param[i].mutex);
qemu_cond_init(&decomp_param[i].cond);
decomp_param[i].compbuf = g_malloc0(compressBound(TARGET_PAGE_SIZE));
qemu_thread_create(decompress_threads + i, "decompress",
do_data_decompress, decomp_param + i,
QEMU_THREAD_JOINABLE);
@ -1280,6 +1288,9 @@ void migrate_decompress_threads_join(void)
thread_count = migrate_decompress_threads();
for (i = 0; i < thread_count; i++) {
qemu_thread_join(decompress_threads + i);
qemu_mutex_destroy(&decomp_param[i].mutex);
qemu_cond_destroy(&decomp_param[i].cond);
g_free(decomp_param[i].compbuf);
}
g_free(decompress_threads);
g_free(decomp_param);