[Qemu-devel] [v7 06/14] arch_init: Add and free data struct for decompression

[Liang Li]

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...@intel.com>
Signed-off-by: Yang Zhang <yang.z.zh...@intel.com>
Reviewed-by: Dr.David Alan Gilbert <dgilb...@redhat.com>
Reviewed-by: Juan Quintela <quint...@redhat.com>
---
 arch_init.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch_init.c b/arch_init.c
index 00d3a18..67f5a24 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -331,7 +331,13 @@ struct CompressParam {
 typedef struct CompressParam CompressParam;
 
 struct DecompressParam {
-    /* To be done */
+    bool start;
+    bool quit;
+    QemuMutex mutex;
+    QemuCond cond;
+    void *des;
+    uint8 *compbuf;
+    int len;
 };
 typedef struct DecompressParam DecompressParam;
 
@@ -1262,6 +1268,9 @@ void migrate_decompress_threads_create(void)
     decomp_param = g_new0(DecompressParam, thread_count);
     compressed_data_buf = g_malloc0(compressBound(TARGET_PAGE_SIZE));
     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);
@@ -1275,6 +1284,9 @@ 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);
-- 
1.9.1