svm: harmonize ssvm names

Type: refactor

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I26e4ad6bfd9e0be7745f6ba948bf51550fd4215e

7 files changed, 61 insertions, 62 deletions

diff --git a/src/svm/fifo_segment.c b/src/svm/fifo_segment.c
index a247929a058..83437183d1d 100644
--- a/src/svm/fifo_segment.c
+++ b/src/svm/fifo_segment.c
@@ -206,12 +206,12 @@ fifo_segment_create (fifo_segment_main_t * sm, fifo_segment_create_args_t * a)
 
   baseva = a->segment_type == SSVM_SEGMENT_PRIVATE ? ~0ULL : sm->next_baseva;
   fs->ssvm.ssvm_size = a->segment_size;
-  fs->ssvm.i_am_master = 1;
+  fs->ssvm.is_server = 1;
   fs->ssvm.my_pid = getpid ();
   fs->ssvm.name = format (0, "%s%c", a->segment_name, 0);
   fs->ssvm.requested_va = baseva;
 
-  if ((rv = ssvm_master_init (&fs->ssvm, a->segment_type)))
+  if ((rv = ssvm_server_init (&fs->ssvm, a->segment_type)))
     {
       pool_put (sm->segments, fs);
       return (rv);
@@ -245,7 +245,7 @@ fifo_segment_attach (fifo_segment_main_t * sm, fifo_segment_create_args_t * a)
   else
     fs->ssvm.attach_timeout = sm->timeout_in_seconds;
 
-  if ((rv = ssvm_slave_init (&fs->ssvm, a->segment_type)))
+  if ((rv = ssvm_client_init (&fs->ssvm, a->segment_type)))
     {
       _vec_len (fs) = vec_len (fs) - 1;
       return (rv);
diff --git a/src/svm/ssvm.c b/src/svm/ssvm.c
index 191dbe571c7..aca65ad6f42 100644
--- a/src/svm/ssvm.c
+++ b/src/svm/ssvm.c
@@ -18,15 +18,15 @@
 typedef int (*init_fn) (ssvm_private_t *);
 typedef void (*delete_fn) (ssvm_private_t *);
 
-static init_fn master_init_fns[SSVM_N_SEGMENT_TYPES] =
-  { ssvm_master_init_shm, ssvm_master_init_memfd, ssvm_master_init_private };
-static init_fn slave_init_fns[SSVM_N_SEGMENT_TYPES] =
-  { ssvm_slave_init_shm, ssvm_slave_init_memfd, ssvm_slave_init_private };
+static init_fn server_init_fns[SSVM_N_SEGMENT_TYPES] =
+  { ssvm_server_init_shm, ssvm_server_init_memfd, ssvm_server_init_private };
+static init_fn client_init_fns[SSVM_N_SEGMENT_TYPES] =
+  { ssvm_client_init_shm, ssvm_client_init_memfd, ssvm_client_init_private };
 static delete_fn delete_fns[SSVM_N_SEGMENT_TYPES] =
   { ssvm_delete_shm, ssvm_delete_memfd, ssvm_delete_private };
 
 int
-ssvm_master_init_shm (ssvm_private_t * ssvm)
+ssvm_server_init_shm (ssvm_private_t * ssvm)
 {
   int ssvm_fd;
   u8 junk = 0, *ssvm_filename;
@@ -96,13 +96,13 @@ ssvm_master_init_shm (ssvm_private_t * ssvm)
   close (ssvm_fd);
 
   CLIB_MEM_UNPOISON (sh, sizeof (*sh));
-  sh->master_pid = ssvm->my_pid;
+  sh->server_pid = ssvm->my_pid;
   sh->ssvm_size = ssvm->ssvm_size;
   sh->ssvm_va = pointer_to_uword (sh);
   sh->type = SSVM_SEGMENT_SHM;
   sh->heap = clib_mem_create_heap (((u8 *) sh) + page_size,
 				   ssvm->ssvm_size - page_size,
-				   1 /* locked */ , "ssvm master shm");
+				   1 /* locked */ , "ssvm server shm");
 
   oldheap = ssvm_push_heap (sh);
   sh->name = format (0, "%s", ssvm->name, 0);
@@ -110,21 +110,21 @@ ssvm_master_init_shm (ssvm_private_t * ssvm)
 
   ssvm->sh = sh;
   ssvm->my_pid = getpid ();
-  ssvm->i_am_master = 1;
+  ssvm->is_server = 1;
 
   /* The application has to set set sh->ready... */
   return 0;
 }
 
 int
-ssvm_slave_init_shm (ssvm_private_t * ssvm)
+ssvm_client_init_shm (ssvm_private_t * ssvm)
 {
   struct stat stat;
   int ssvm_fd = -1;
   ssvm_shared_header_t *sh;
 
   ASSERT (vec_c_string_is_terminated (ssvm->name));
-  ssvm->i_am_master = 0;
+  ssvm->is_server = 0;
 
   while (ssvm->attach_timeout-- > 0)
     {
@@ -144,15 +144,15 @@ ssvm_slave_init_shm (ssvm_private_t * ssvm)
       if (stat.st_size > 0)
 	goto map_it;
     }
-  clib_warning ("slave timeout");
-  return SSVM_API_ERROR_SLAVE_TIMEOUT;
+  clib_warning ("client timeout");
+  return SSVM_API_ERROR_CLIENT_TIMEOUT;
 
 map_it:
   sh = (void *) mmap (0, MMAP_PAGESIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
 		      ssvm_fd, 0);
   if (sh == MAP_FAILED)
     {
-      clib_unix_warning ("slave research mmap");
+      clib_unix_warning ("client research mmap");
       close (ssvm_fd);
       return SSVM_API_ERROR_MMAP;
     }
@@ -164,8 +164,8 @@ map_it:
     }
   close (ssvm_fd);
   munmap (sh, MMAP_PAGESIZE);
-  clib_warning ("slave timeout 2");
-  return SSVM_API_ERROR_SLAVE_TIMEOUT;
+  clib_warning ("client timeout 2");
+  return SSVM_API_ERROR_CLIENT_TIMEOUT;
 
 re_map_it:
   ssvm->requested_va = sh->ssvm_va;
@@ -178,11 +178,11 @@ re_map_it:
 
   if (sh == MAP_FAILED)
     {
-      clib_unix_warning ("slave final mmap");
+      clib_unix_warning ("client final mmap");
       close (ssvm_fd);
       return SSVM_API_ERROR_MMAP;
     }
-  sh->slave_pid = getpid ();
+  sh->client_pid = getpid ();
   return 0;
 }
 
@@ -204,17 +204,17 @@ ssvm_delete_shm (ssvm_private_t * ssvm)
   vec_free (fn);
   vec_free (ssvm->name);
 
-  if (ssvm->i_am_master)
+  if (ssvm->is_server)
     clib_mem_vm_unmap (ssvm->sh);
   else
     munmap ((void *) ssvm->sh, ssvm->ssvm_size);
 }
 
 /**
- * Initialize memfd segment master
+ * Initialize memfd segment server
  */
 int
-ssvm_master_init_memfd (ssvm_private_t * memfd)
+ssvm_server_init_memfd (ssvm_private_t * memfd)
 {
   int log2_page_size, n_pages;
   uword page_size;
@@ -262,9 +262,9 @@ ssvm_master_init_memfd (ssvm_private_t * memfd)
 
   memfd->sh = sh;
   memfd->my_pid = getpid ();
-  memfd->i_am_master = 1;
+  memfd->is_server = 1;
 
-  sh->master_pid = memfd->my_pid;
+  sh->server_pid = memfd->my_pid;
   sh->ssvm_size = memfd->ssvm_size;
   sh->ssvm_va = pointer_to_uword (sh);
   sh->type = SSVM_SEGMENT_MEMFD;
@@ -272,7 +272,7 @@ ssvm_master_init_memfd (ssvm_private_t * memfd)
   page_size = 1 << log2_page_size;
   sh->heap = clib_mem_create_heap (((u8 *) sh) + page_size,
 				   memfd->ssvm_size - page_size,
-				   1 /* locked */ , "ssvm master memfd");
+				   1 /* locked */ , "ssvm server memfd");
   oldheap = ssvm_push_heap (sh);
   sh->name = format (0, "%s", memfd->name, 0);
   ssvm_pop_heap (oldheap);
@@ -282,20 +282,20 @@ ssvm_master_init_memfd (ssvm_private_t * memfd)
 }
 
 /**
- * Initialize memfd segment slave
+ * Initialize memfd segment client
  *
- * Subtly different than svm_slave_init. The caller needs to acquire
+ * Subtly different than svm_client_init. The caller needs to acquire
  * a usable file descriptor for the memfd segment e.g. via
  * vppinfra/socket.c:default_socket_recvmsg
  */
 int
-ssvm_slave_init_memfd (ssvm_private_t * memfd)
+ssvm_client_init_memfd (ssvm_private_t * memfd)
 {
   clib_mem_vm_map_t mapa = { 0 };
   ssvm_shared_header_t *sh;
   uword page_size;
 
-  memfd->i_am_master = 0;
+  memfd->is_server = 0;
 
   page_size = clib_mem_get_fd_page_size (memfd->fd);
   if (!page_size)
@@ -312,7 +312,7 @@ ssvm_slave_init_memfd (ssvm_private_t * memfd)
 
   if (clib_mem_vm_ext_map (&mapa))
     {
-      clib_unix_warning ("slave research mmap (fd %d)", mapa.fd);
+      clib_unix_warning ("client research mmap (fd %d)", mapa.fd);
       close (memfd->fd);
       return SSVM_API_ERROR_MMAP;
     }
@@ -329,13 +329,13 @@ ssvm_slave_init_memfd (ssvm_private_t * memfd)
   mapa.size = memfd->ssvm_size;
   if (clib_mem_vm_ext_map (&mapa))
     {
-      clib_unix_warning ("slave final mmap");
+      clib_unix_warning ("client final mmap");
       close (memfd->fd);
       return SSVM_API_ERROR_MMAP;
     }
 
   sh = mapa.addr;
-  sh->slave_pid = getpid ();
+  sh->client_pid = getpid ();
   memfd->sh = sh;
   return 0;
 }
@@ -344,7 +344,7 @@ void
 ssvm_delete_memfd (ssvm_private_t * memfd)
 {
   vec_free (memfd->name);
-  if (memfd->i_am_master)
+  if (memfd->is_server)
     clib_mem_vm_unmap (memfd->sh);
   else
     clib_mem_vm_free (memfd->sh, memfd->ssvm_size);
@@ -355,7 +355,7 @@ ssvm_delete_memfd (ssvm_private_t * memfd)
  * Initialize segment in a private heap
  */
 int
-ssvm_master_init_private (ssvm_private_t * ssvm)
+ssvm_server_init_private (ssvm_private_t * ssvm)
 {
   uword page_size, log2_page_size, rnd_size = 0;
   ssvm_shared_header_t *sh;
@@ -382,7 +382,7 @@ ssvm_master_init_private (ssvm_private_t * ssvm)
     }
 
   heap = clib_mem_create_heap ((u8 *) sh + page_size, rnd_size,
-			       1 /* locked */ , "ssvm master private");
+			       1 /* locked */ , "ssvm server private");
   if (heap == 0)
     {
       clib_unix_warning ("heap alloc");
@@ -392,7 +392,7 @@ ssvm_master_init_private (ssvm_private_t * ssvm)
   rnd_size = clib_mem_get_heap_free_space (heap);
 
   ssvm->ssvm_size = rnd_size;
-  ssvm->i_am_master = 1;
+  ssvm->is_server = 1;
   ssvm->my_pid = getpid ();
   ssvm->requested_va = ~0;
 
@@ -413,7 +413,7 @@ ssvm_master_init_private (ssvm_private_t * ssvm)
 }
 
 int
-ssvm_slave_init_private (ssvm_private_t * ssvm)
+ssvm_client_init_private (ssvm_private_t * ssvm)
 {
   clib_warning ("BUG: this should not be called!");
   return -1;
@@ -428,15 +428,15 @@ ssvm_delete_private (ssvm_private_t * ssvm)
 }
 
 int
-ssvm_master_init (ssvm_private_t * ssvm, ssvm_segment_type_t type)
+ssvm_server_init (ssvm_private_t * ssvm, ssvm_segment_type_t type)
 {
-  return (master_init_fns[type]) (ssvm);
+  return (server_init_fns[type]) (ssvm);
 }
 
 int
-ssvm_slave_init (ssvm_private_t * ssvm, ssvm_segment_type_t type)
+ssvm_client_init (ssvm_private_t * ssvm, ssvm_segment_type_t type)
 {
-  return (slave_init_fns[type]) (ssvm);
+  return (client_init_fns[type]) (ssvm);
 }
 
 void
diff --git a/src/svm/ssvm.h b/src/svm/ssvm.h
index 3a277cb5c5f..60ff3e4a2d0 100644
--- a/src/svm/ssvm.h
+++ b/src/svm/ssvm.h
@@ -67,12 +67,12 @@ typedef struct
   uword ssvm_va;
   /* The actual mmap size */
   uword ssvm_size;
-  u32 master_pid;
-  u32 slave_pid;
+  u32 server_pid;
+  u32 client_pid;
   u8 *name;
   void *opaque[SSVM_N_OPAQUE];
 
-  /* Set when the master application thinks it's time to make the donuts */
+  /* Set when server init done */
   volatile u32 ready;
 
   ssvm_segment_type_t type;
@@ -86,7 +86,7 @@ typedef struct
   u32 my_pid;
   u8 *name;
   u8 numa;			/**< UNUSED: numa requested at alloc time */
-  int i_am_master;
+  int is_server;
 
   union
   {
@@ -167,11 +167,11 @@ ssvm_mem_alloc (ssvm_private_t * ssvm, uword size)
 
 #define foreach_ssvm_api_error                  \
 _(NO_NAME, "No shared segment name", -100)      \
-_(NO_SIZE, "Size not set (master)", -101)       \
+_(NO_SIZE, "Size not set (server)", -101)       \
 _(CREATE_FAILURE, "Create failed", -102)        \
 _(SET_SIZE, "Set size failed", -103)		\
 _(MMAP, "mmap failed", -104)			\
-_(SLAVE_TIMEOUT, "Slave map timeout", -105)
+_(CLIENT_TIMEOUT, "Client map timeout", -105)
 
 typedef enum
 {
@@ -182,20 +182,20 @@ typedef enum
 
 #define SSVM_API_ERROR_NO_NAME	(-10)
 
-int ssvm_master_init (ssvm_private_t * ssvm, ssvm_segment_type_t type);
-int ssvm_slave_init (ssvm_private_t * ssvm, ssvm_segment_type_t type);
+int ssvm_server_init (ssvm_private_t * ssvm, ssvm_segment_type_t type);
+int ssvm_client_init (ssvm_private_t * ssvm, ssvm_segment_type_t type);
 void ssvm_delete (ssvm_private_t * ssvm);
 
-int ssvm_master_init_shm (ssvm_private_t * ssvm);
-int ssvm_slave_init_shm (ssvm_private_t * ssvm);
+int ssvm_server_init_shm (ssvm_private_t * ssvm);
+int ssvm_client_init_shm (ssvm_private_t * ssvm);
 void ssvm_delete_shm (ssvm_private_t * ssvm);
 
-int ssvm_master_init_memfd (ssvm_private_t * memfd);
-int ssvm_slave_init_memfd (ssvm_private_t * memfd);
+int ssvm_server_init_memfd (ssvm_private_t * memfd);
+int ssvm_client_init_memfd (ssvm_private_t * memfd);
 void ssvm_delete_memfd (ssvm_private_t * memfd);
 
-int ssvm_master_init_private (ssvm_private_t * ssvm);
-int ssvm_slave_init_private (ssvm_private_t * ssvm);
+int ssvm_server_init_private (ssvm_private_t * ssvm);
+int ssvm_client_init_private (ssvm_private_t * ssvm);
 void ssvm_delete_private (ssvm_private_t * ssvm);
 
 ssvm_segment_type_t ssvm_type (const ssvm_private_t * ssvm);
diff --git a/src/vlibmemory/socket_api.c b/src/vlibmemory/socket_api.c
index a3a0c3b2eb9..51c52b43e7a 100644
--- a/src/vlibmemory/socket_api.c
+++ b/src/vlibmemory/socket_api.c
@@ -639,10 +639,10 @@ vl_api_sock_init_shm_t_handler (vl_api_sock_init_shm_t * mp)
   clib_memset (memfd, 0, sizeof (*memfd));
   memfd->ssvm_size = mp->requested_size;
   memfd->requested_va = 0ULL;
-  memfd->i_am_master = 1;
+  memfd->is_server = 1;
   memfd->name = format (0, "%s%c", regp->name, 0);
 
-  if ((rv = ssvm_master_init_memfd (memfd)))
+  if ((rv = ssvm_server_init_memfd (memfd)))
     goto reply;
 
   /* Remember to close this fd when the socket connection goes away */
diff --git a/src/vlibmemory/socket_client.c b/src/vlibmemory/socket_client.c
index b7d4f2d6e54..8d9d7cefc0d 100644
--- a/src/vlibmemory/socket_client.c
+++ b/src/vlibmemory/socket_client.c
@@ -379,7 +379,7 @@ static void vl_api_sock_init_shm_reply_t_handler
   memfd->fd = my_fd;
 
   /* Note: this closes memfd.fd */
-  retval = ssvm_slave_init_memfd (memfd);
+  retval = ssvm_client_init_memfd (memfd);
   if (retval)
     clib_warning ("WARNING: segment map returned %d", retval);
 
diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c
index 44ff5fefd70..d734d64172e 100644
--- a/src/vnet/session/segment_manager.c
+++ b/src/vnet/session/segment_manager.c
@@ -149,7 +149,7 @@ segment_manager_add_segment (segment_manager_t * sm, uword segment_size)
   /* clib_mem_vm_map_shared consumes first page before requested_va */
   fs->ssvm.requested_va = baseva + page_size;
 
-  if ((rv = ssvm_master_init (&fs->ssvm, props->segment_type)))
+  if ((rv = ssvm_server_init (&fs->ssvm, props->segment_type)))
     {
       clib_warning ("svm_master_init ('%v', %u) failed", seg_name,
 		    segment_size);
diff --git a/src/vnet/session/session.c b/src/vnet/session/session.c
index 5065f7834b1..3295ce7649d 100644
--- a/src/vnet/session/session.c
+++ b/src/vnet/session/session.c
@@ -1494,13 +1494,12 @@ session_vpp_event_queues_allocate (session_main_t * smm)
 	eqs_size = smm->evt_qs_segment_size;
 
       eqs->ssvm_size = eqs_size;
-      eqs->i_am_master = 1;
       eqs->my_pid = vpp_pid;
       eqs->name = format (0, "%s%c", "session: evt-qs-segment", 0);
       /* clib_mem_vm_map_shared consumes first page before requested_va */
       eqs->requested_va = smm->session_baseva + clib_mem_get_page_size ();
 
-      if (ssvm_master_init (eqs, SSVM_SEGMENT_MEMFD))
+      if (ssvm_server_init (eqs, SSVM_SEGMENT_MEMFD))
 	{
 	  clib_warning ("failed to initialize queue segment");
 	  return;