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nbdkit/SOURCES/0020-vddk-Replace-DEBUG_CAL...

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From 51713e7702d389fd55d5721c4773fca40e3e89f6 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Wed, 18 Aug 2021 14:26:30 +0100
Subject: [PATCH] vddk: Replace DEBUG_CALL with bracketed VDDK_CALL_START/END
macros
This is neutral refactoring, but allows us in the next commit to
collect statistics about the amount of time spent in these calls.
(cherry picked from commit 1335ebfb5637bf5a44403d0b152da7272fdd3e54)
---
plugins/vddk/vddk.c | 175 +++++++++++++++++++++++++-------------------
1 file changed, 99 insertions(+), 76 deletions(-)
diff --git a/plugins/vddk/vddk.c b/plugins/vddk/vddk.c
index b5bce9a0..888009ab 100644
--- a/plugins/vddk/vddk.c
+++ b/plugins/vddk/vddk.c
@@ -104,19 +104,23 @@ static bool is_remote;
VixDiskLib_FreeErrorText (vddk_err_msg); \
} while (0)
-#define DEBUG_CALL(fn, fs, ...) \
- nbdkit_debug ("VDDK call: %s (" fs ")", fn, ##__VA_ARGS__)
-#define DEBUG_CALL_DATAPATH(fn, fs, ...) \
- if (vddk_debug_datapath) \
- nbdkit_debug ("VDDK call: %s (" fs ")", fn, ##__VA_ARGS__)
+#define VDDK_CALL_START(fn, fs, ...) \
+ nbdkit_debug ("VDDK call: %s (" fs ")", #fn, ##__VA_ARGS__); \
+ do
+#define VDDK_CALL_START_DATAPATH(fn, fs, ...) \
+ if (vddk_debug_datapath) \
+ nbdkit_debug ("VDDK call: %s (" fs ")", #fn, ##__VA_ARGS__); \
+ do
+#define VDDK_CALL_END(fn) while (0)
/* Unload the plugin. */
static void
vddk_unload (void)
{
if (init_called) {
- DEBUG_CALL ("VixDiskLib_Exit", "");
- VixDiskLib_Exit ();
+ VDDK_CALL_START (VixDiskLib_Exit, "") {
+ VixDiskLib_Exit ();
+ } VDDK_CALL_END (VixDiskLib_Exit);
}
if (dl)
dlclose (dl);
@@ -449,15 +453,16 @@ vddk_after_fork (void)
VixError err;
/* Initialize VDDK library. */
- DEBUG_CALL ("VixDiskLib_InitEx",
- "%d, %d, &debug_fn, &error_fn, &error_fn, %s, %s",
- VDDK_MAJOR, VDDK_MINOR,
- libdir, config ? : "NULL");
- err = VixDiskLib_InitEx (VDDK_MAJOR, VDDK_MINOR,
- &debug_function, /* log function */
- &error_function, /* warn function */
- &error_function, /* panic function */
- libdir, config);
+ VDDK_CALL_START (VixDiskLib_InitEx,
+ "%d, %d, &debug_fn, &error_fn, &error_fn, %s, %s",
+ VDDK_MAJOR, VDDK_MINOR,
+ libdir, config ? : "NULL") {
+ err = VixDiskLib_InitEx (VDDK_MAJOR, VDDK_MINOR,
+ &debug_function, /* log function */
+ &error_function, /* warn function */
+ &error_function, /* panic function */
+ libdir, config);
+ } VDDK_CALL_END (VixDiskLib_InitEx);
if (err != VIX_OK) {
VDDK_ERROR (err, "VixDiskLib_InitEx");
exit (EXIT_FAILURE);
@@ -519,8 +524,9 @@ allocate_connect_params (void)
VixDiskLibConnectParams *ret;
if (VixDiskLib_AllocateConnectParams != NULL) {
- DEBUG_CALL ("VixDiskLib_AllocateConnectParams", "");
- ret = VixDiskLib_AllocateConnectParams ();
+ VDDK_CALL_START (VixDiskLib_AllocateConnectParams, "") {
+ ret = VixDiskLib_AllocateConnectParams ();
+ } VDDK_CALL_END (VixDiskLib_AllocateConnectParams);
}
else
ret = calloc (1, sizeof (VixDiskLibConnectParams));
@@ -535,8 +541,9 @@ free_connect_params (VixDiskLibConnectParams *params)
* originally called. Otherwise use free.
*/
if (VixDiskLib_AllocateConnectParams != NULL) {
- DEBUG_CALL ("VixDiskLib_FreeConnectParams", "params");
- VixDiskLib_FreeConnectParams (params);
+ VDDK_CALL_START (VixDiskLib_FreeConnectParams, "params") {
+ VixDiskLib_FreeConnectParams (params);
+ } VDDK_CALL_END (VixDiskLib_FreeConnectParams);
}
else
free (params);
@@ -589,16 +596,17 @@ vddk_open (int readonly)
* either ESXi or vCenter servers.
*/
- DEBUG_CALL ("VixDiskLib_ConnectEx",
- "h->params, %d, %s, %s, &connection",
- readonly,
- snapshot_moref ? : "NULL",
- transport_modes ? : "NULL");
- err = VixDiskLib_ConnectEx (h->params,
- readonly,
- snapshot_moref,
- transport_modes,
- &h->connection);
+ VDDK_CALL_START (VixDiskLib_ConnectEx,
+ "h->params, %d, %s, %s, &connection",
+ readonly,
+ snapshot_moref ? : "NULL",
+ transport_modes ? : "NULL") {
+ err = VixDiskLib_ConnectEx (h->params,
+ readonly,
+ snapshot_moref,
+ transport_modes,
+ &h->connection);
+ } VDDK_CALL_END (VixDiskLib_ConnectEx);
if (err != VIX_OK) {
VDDK_ERROR (err, "VixDiskLib_ConnectEx");
goto err1;
@@ -618,9 +626,10 @@ vddk_open (int readonly)
case NONE: break;
}
- DEBUG_CALL ("VixDiskLib_Open",
- "connection, %s, %d, &handle", filename, flags);
- err = VixDiskLib_Open (h->connection, filename, flags, &h->handle);
+ VDDK_CALL_START (VixDiskLib_Open,
+ "connection, %s, %d, &handle", filename, flags) {
+ err = VixDiskLib_Open (h->connection, filename, flags, &h->handle);
+ } VDDK_CALL_END (VixDiskLib_Open);
if (err != VIX_OK) {
VDDK_ERROR (err, "VixDiskLib_Open: %s", filename);
goto err2;
@@ -632,8 +641,9 @@ vddk_open (int readonly)
return h;
err2:
- DEBUG_CALL ("VixDiskLib_Disconnect", "connection");
- VixDiskLib_Disconnect (h->connection);
+ VDDK_CALL_START (VixDiskLib_Disconnect, "connection") {
+ VixDiskLib_Disconnect (h->connection);
+ } VDDK_CALL_END (VixDiskLib_Disconnect);
err1:
free_connect_params (h->params);
err0:
@@ -648,10 +658,13 @@ vddk_close (void *handle)
ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&open_close_lock);
struct vddk_handle *h = handle;
- DEBUG_CALL ("VixDiskLib_Close", "handle");
- VixDiskLib_Close (h->handle);
- DEBUG_CALL ("VixDiskLib_Disconnect", "connection");
- VixDiskLib_Disconnect (h->connection);
+ VDDK_CALL_START (VixDiskLib_Close, "handle") {
+ VixDiskLib_Close (h->handle);
+ } VDDK_CALL_END (VixDiskLib_Close);
+ VDDK_CALL_START (VixDiskLib_Disconnect, "connection") {
+ VixDiskLib_Disconnect (h->connection);
+ } VDDK_CALL_END (VixDiskLib_Disconnect);
+
free_connect_params (h->params);
free (h);
}
@@ -665,8 +678,9 @@ vddk_get_size (void *handle)
VixError err;
uint64_t size;
- DEBUG_CALL ("VixDiskLib_GetInfo", "handle, &info");
- err = VixDiskLib_GetInfo (h->handle, &info);
+ VDDK_CALL_START (VixDiskLib_GetInfo, "handle, &info") {
+ err = VixDiskLib_GetInfo (h->handle, &info);
+ } VDDK_CALL_END (VixDiskLib_GetInfo);
if (err != VIX_OK) {
VDDK_ERROR (err, "VixDiskLib_GetInfo");
return -1;
@@ -694,8 +708,9 @@ vddk_get_size (void *handle)
info->uuid ? : "NULL");
}
- DEBUG_CALL ("VixDiskLib_FreeInfo", "info");
- VixDiskLib_FreeInfo (info);
+ VDDK_CALL_START (VixDiskLib_FreeInfo, "info") {
+ VixDiskLib_FreeInfo (info);
+ } VDDK_CALL_END (VixDiskLib_FreeInfo);
return (int64_t) size;
}
@@ -723,11 +738,12 @@ vddk_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
offset /= VIXDISKLIB_SECTOR_SIZE;
count /= VIXDISKLIB_SECTOR_SIZE;
- DEBUG_CALL_DATAPATH ("VixDiskLib_Read",
- "handle, %" PRIu64 " sectors, "
- "%" PRIu32 " sectors, buffer",
- offset, count);
- err = VixDiskLib_Read (h->handle, offset, count, buf);
+ VDDK_CALL_START_DATAPATH (VixDiskLib_Read,
+ "handle, %" PRIu64 " sectors, "
+ "%" PRIu32 " sectors, buffer",
+ offset, count) {
+ err = VixDiskLib_Read (h->handle, offset, count, buf);
+ } VDDK_CALL_END (VixDiskLib_Read);
if (err != VIX_OK) {
VDDK_ERROR (err, "VixDiskLib_Read");
return -1;
@@ -762,11 +778,12 @@ vddk_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset,
offset /= VIXDISKLIB_SECTOR_SIZE;
count /= VIXDISKLIB_SECTOR_SIZE;
- DEBUG_CALL_DATAPATH ("VixDiskLib_Write",
- "handle, %" PRIu64 " sectors, "
- "%" PRIu32 " sectors, buffer",
- offset, count);
- err = VixDiskLib_Write (h->handle, offset, count, buf);
+ VDDK_CALL_START_DATAPATH (VixDiskLib_Write,
+ "handle, %" PRIu64 " sectors, "
+ "%" PRIu32 " sectors, buffer",
+ offset, count) {
+ err = VixDiskLib_Write (h->handle, offset, count, buf);
+ } VDDK_CALL_END (VixDiskLib_Write);
if (err != VIX_OK) {
VDDK_ERROR (err, "VixDiskLib_Write");
return -1;
@@ -801,8 +818,9 @@ vddk_flush (void *handle, uint32_t flags)
struct vddk_handle *h = handle;
VixError err;
- DEBUG_CALL ("VixDiskLib_Flush", "handle");
- err = VixDiskLib_Flush (h->handle);
+ VDDK_CALL_START (VixDiskLib_Flush, "handle") {
+ err = VixDiskLib_Flush (h->handle);
+ } VDDK_CALL_END (VixDiskLib_Flush);
if (err != VIX_OK) {
VDDK_ERROR (err, "VixDiskLib_Flush");
return -1;
@@ -836,17 +854,19 @@ vddk_can_extents (void *handle)
* the best thing we can do here is to try the call and if it's
* non-functional return false.
*/
- DEBUG_CALL ("VixDiskLib_QueryAllocatedBlocks",
- "handle, 0, %d sectors, %d sectors",
- VIXDISKLIB_MIN_CHUNK_SIZE, VIXDISKLIB_MIN_CHUNK_SIZE);
- err = VixDiskLib_QueryAllocatedBlocks (h->handle,
- 0, VIXDISKLIB_MIN_CHUNK_SIZE,
- VIXDISKLIB_MIN_CHUNK_SIZE,
- &block_list);
+ VDDK_CALL_START (VixDiskLib_QueryAllocatedBlocks,
+ "handle, 0, %d sectors, %d sectors",
+ VIXDISKLIB_MIN_CHUNK_SIZE, VIXDISKLIB_MIN_CHUNK_SIZE) {
+ err = VixDiskLib_QueryAllocatedBlocks (h->handle,
+ 0, VIXDISKLIB_MIN_CHUNK_SIZE,
+ VIXDISKLIB_MIN_CHUNK_SIZE,
+ &block_list);
+ } VDDK_CALL_END (VixDiskLib_QueryAllocatedBlocks);
error_suppression = 0;
if (err == VIX_OK) {
- DEBUG_CALL ("VixDiskLib_FreeBlockList", "block_list");
- VixDiskLib_FreeBlockList (block_list);
+ VDDK_CALL_START (VixDiskLib_FreeBlockList, "block_list") {
+ VixDiskLib_FreeBlockList (block_list);
+ } VDDK_CALL_END (VixDiskLib_FreeBlockList);
}
if (err != VIX_OK) {
char *errmsg = VixDiskLib_GetErrorText (err, NULL);
@@ -923,14 +943,15 @@ vddk_extents (void *handle, uint32_t count, uint64_t offset, uint32_t flags,
nr_chunks = MIN (nr_chunks, VIXDISKLIB_MAX_CHUNK_NUMBER);
nr_sectors = nr_chunks * VIXDISKLIB_MIN_CHUNK_SIZE;
- DEBUG_CALL ("VixDiskLib_QueryAllocatedBlocks",
- "handle, %" PRIu64 " sectors, %" PRIu64 " sectors, "
- "%d sectors",
- start_sector, nr_sectors, VIXDISKLIB_MIN_CHUNK_SIZE);
- err = VixDiskLib_QueryAllocatedBlocks (h->handle,
- start_sector, nr_sectors,
- VIXDISKLIB_MIN_CHUNK_SIZE,
- &block_list);
+ VDDK_CALL_START (VixDiskLib_QueryAllocatedBlocks,
+ "handle, %" PRIu64 " sectors, %" PRIu64 " sectors, "
+ "%d sectors",
+ start_sector, nr_sectors, VIXDISKLIB_MIN_CHUNK_SIZE) {
+ err = VixDiskLib_QueryAllocatedBlocks (h->handle,
+ start_sector, nr_sectors,
+ VIXDISKLIB_MIN_CHUNK_SIZE,
+ &block_list);
+ } VDDK_CALL_END (VixDiskLib_QueryAllocatedBlocks);
if (err != VIX_OK) {
VDDK_ERROR (err, "VixDiskLib_QueryAllocatedBlocks");
return -1;
@@ -949,13 +970,15 @@ vddk_extents (void *handle, uint32_t count, uint64_t offset, uint32_t flags,
add_extent (extents, &position, blk_offset, true) == -1) ||
(add_extent (extents,
&position, blk_offset + blk_length, false) == -1)) {
- DEBUG_CALL ("VixDiskLib_FreeBlockList", "block_list");
- VixDiskLib_FreeBlockList (block_list);
+ VDDK_CALL_START (VixDiskLib_FreeBlockList, "block_list") {
+ VixDiskLib_FreeBlockList (block_list);
+ } VDDK_CALL_END (VixDiskLib_FreeBlockList);
return -1;
}
}
- DEBUG_CALL ("VixDiskLib_FreeBlockList", "block_list");
- VixDiskLib_FreeBlockList (block_list);
+ VDDK_CALL_START (VixDiskLib_FreeBlockList, "block_list") {
+ VixDiskLib_FreeBlockList (block_list);
+ } VDDK_CALL_END (VixDiskLib_FreeBlockList);
/* There's an implicit hole after the returned list of blocks, up
* to the end of the QueryAllocatedBlocks request.
--
2.31.1
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