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authorDave Barach <dave@barachs.net>2016-11-10 14:22:49 -0500
committerDamjan Marion <dmarion.lists@gmail.com>2016-11-21 18:11:41 +0000
commit557d128b68a1213e056f5eed9fe6f230ca3f3144 (patch)
tree6b31ac462efacf3f6937788c9b7af1420497c9fc /vlib-api/vlibmemory/memory_vlib.c
parentfca670b0ec9f74aa977fe479a5517ad6367ee898 (diff)
Add client-side msg_name_and_crc -> msg_index table
vppapigen now generates per-message crcs. Verified that whitespace and real changes in message A don't change the crc for message B, etc. Fixed the sample and flowperpkt plugins to participate. Others need the same treatment. They don't build due to python/java language binding build issues. To use the scheme: Client connects as usual. Then call: u32 vl_api_get_msg_index(char * name_and_crc) name_and_crc is a string like: "flowperpkt_tx_interface_add_del_753301f3", aka the message name with _%08x <expected crc> appended. Try these vpp-api-test commands to play with it: vat# dump_msg_api_table <snip> [366]: punt_reply_cca27fbe [367]: ipsec_spd_dump_5e9ae88e [368]: ipsec_spd_details_6f7821b0 [369]: sample_macswap_enable_disable_0f2813e2 [370]: sample_macswap_enable_disable_reply_476738e5 [371]: flowperpkt_tx_interface_add_del_753301f3 [372]: flowperpkt_tx_interface_add_del_reply_d47e6e0b vat# get_msg_id sample_macswap_enable_disable_reply_476738e5 'sample_macswap_enable_disable_reply_476738e5' has message index 370 vat# get_msg_id sample_macswap_enable_disable_reply_476738e3 'sample_macswap_enable_disable_reply_476738e3' not found CRCs may vary, etc. vppapigen is used to build a set of JSON representations of each API file from vpp-api/Makefile.am and that is in turn used by each language binding (Java, Python, Lua). Change-Id: I3d64582e779dac5f20cddec79c562c288d8fd9c6 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'vlib-api/vlibmemory/memory_vlib.c')
-rw-r--r--vlib-api/vlibmemory/memory_vlib.c42
1 files changed, 32 insertions, 10 deletions
diff --git a/vlib-api/vlibmemory/memory_vlib.c b/vlib-api/vlibmemory/memory_vlib.c
index ca3eb141f7e..5f97f1611d1 100644
--- a/vlib-api/vlibmemory/memory_vlib.c
+++ b/vlib-api/vlibmemory/memory_vlib.c
@@ -100,13 +100,28 @@ vl_msg_api_send (vl_api_registration_t * rp, u8 * elem)
}
}
-int vl_msg_api_version_check (vl_api_memclnt_create_t * mp)
- __attribute__ ((weak));
-
-int
-vl_msg_api_version_check (vl_api_memclnt_create_t * mp)
+u8 *
+vl_api_serialize_message_table (api_main_t * am, u8 * vector)
{
- return 0;
+ serialize_main_t _sm, *sm = &_sm;
+ hash_pair_t *hp;
+ u32 nmsg = hash_elts (am->msg_index_by_name_and_crc);
+
+ serialize_open_vector (sm, vector);
+
+ /* serialize the count */
+ serialize_integer (sm, nmsg, sizeof (u32));
+
+ hash_foreach_pair (hp, am->msg_index_by_name_and_crc, (
+ {
+ serialize_likely_small_unsigned_integer
+ (sm, hp->value[0]);
+ serialize_cstring
+ (sm,
+ (char *) hp->key);
+ }));
+
+ return serialize_close_vector (sm);
}
/*
@@ -120,12 +135,10 @@ vl_api_memclnt_create_t_handler (vl_api_memclnt_create_t * mp)
vl_api_memclnt_create_reply_t *rp;
svm_region_t *svm;
unix_shared_memory_queue_t *q;
- int rv;
+ int rv = 0;
void *oldheap;
api_main_t *am = &api_main;
-
- /* Indicate API version mismatch if appropriate */
- rv = vl_msg_api_version_check (mp);
+ u8 *serialized_message_table = 0;
/*
* This is tortured. Maintain a vlib-address-space private
@@ -157,6 +170,9 @@ vl_api_memclnt_create_t_handler (vl_api_memclnt_create_t * mp)
svm = am->vlib_rp;
+ if (am->serialized_message_table_in_shmem == 0)
+ serialized_message_table = vl_api_serialize_message_table (am, 0);
+
pthread_mutex_lock (&svm->mutex);
oldheap = svm_push_data_heap (svm);
*regpp = clib_mem_alloc (sizeof (vl_api_registration_t));
@@ -171,10 +187,15 @@ vl_api_memclnt_create_t_handler (vl_api_memclnt_create_t * mp)
regp->name = format (0, "%s", mp->name);
vec_add1 (regp->name, 0);
+ if (serialized_message_table)
+ am->serialized_message_table_in_shmem =
+ vec_dup (serialized_message_table);
pthread_mutex_unlock (&svm->mutex);
svm_pop_heap (oldheap);
+ vec_free (serialized_message_table);
+
rp = vl_msg_api_alloc (sizeof (*rp));
rp->_vl_msg_id = ntohs (VL_API_MEMCLNT_CREATE_REPLY);
rp->handle = (uword) regp;
@@ -183,6 +204,7 @@ vl_api_memclnt_create_t_handler (vl_api_memclnt_create_t * mp)
am->shmem_hdr->application_restarts);
rp->context = mp->context;
rp->response = ntohl (rv);
+ rp->message_table = (u64) am->serialized_message_table_in_shmem;
vl_msg_api_send_shmem (q, (u8 *) & rp);
}