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Rename "DevmapperLogCallback" to avoid conflicts

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Rename the "DevmapperLogCallback" exported-to-C function to
"StorageDevmapperLogCallback", to avoid tripping up anyone who vendors
the library but already has a copy of the "pkg/devicemapper" pkg which
defines the callback with its previous name.

Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
This commit is contained in:
Nalin Dahyabhai 2017-01-09 11:54:40 -05:00
parent cad8eb40eb
commit 55e5d76085
2 changed files with 5 additions and 5 deletions
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6
devicemapper/devmapper_log.go
View file

@ -11,9 +11,9 @@ import (
// Due to the way cgo works this has to be in a separate file, as devmapper.go has
// definitions in the cgo block, which is incompatible with using "//export"
// DevmapperLogCallback exports the devmapper log callback for cgo.
//export DevmapperLogCallback
func DevmapperLogCallback(level C.int, file *C.char, line C.int, dmErrnoOrClass C.int, message *C.char) {
// StorageDevmapperLogCallback exports the devmapper log callback for cgo.
//export StorageDevmapperLogCallback
func StorageDevmapperLogCallback(level C.int, file *C.char, line C.int, dmErrnoOrClass C.int, message *C.char) {
msg := C.GoString(message)
if level < 7 {
if strings.Contains(msg, "busy") {

4
devicemapper/devmapper_wrapper.go
View file

@ -8,7 +8,7 @@ package devicemapper
#include <linux/fs.h> // FIXME: present only for BLKGETSIZE64, maybe we can remove it?
// FIXME: Can't we find a way to do the logging in pure Go?
extern void DevmapperLogCallback(int level, char *file, int line, int dm_errno_or_class, char *str);
extern void StorageDevmapperLogCallback(int level, char *file, int line, int dm_errno_or_class, char *str);
static void log_cb(int level, const char *file, int line, int dm_errno_or_class, const char *f, ...)
{
@ -19,7 +19,7 @@ static void log_cb(int level, const char *file, int line, int dm_errno_or_class,
vsnprintf(buffer, 256, f, ap);
va_end(ap);
DevmapperLogCallback(level, (char *)file, line, dm_errno_or_class, buffer);
StorageDevmapperLogCallback(level, (char *)file, line, dm_errno_or_class, buffer);
}
static void log_with_errno_init()