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authorDaniel P. Berrange <berrange@redhat.com>2016-04-27 11:05:09 +0100
committerAmit Shah <amit.shah@redhat.com>2016-05-26 11:31:55 +0530
commit8b7c5c0f525561ac081d49363863799f11eb3113 (patch)
tree6c22ffc95e7db7fcb5bdaa93ee4ebb3207b09b94
parent8925839f00cd2d9fd96066154098db476140b715 (diff)
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migration: delete QEMUFile buffer implementation
The qemu_bufopen() method is no longer used, so the memory buffer based QEMUFile backend can be deleted entirely. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1461751518-12128-20-git-send-email-berrange@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
-rw-r--r--include/migration/qemu-file.h6
-rw-r--r--migration/qemu-file-buf.c96
2 files changed, 0 insertions, 102 deletions
diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h
index 0329ccc..6618d19 100644
--- a/include/migration/qemu-file.h
+++ b/include/migration/qemu-file.h
@@ -140,7 +140,6 @@ QEMUFile *qemu_fopen_socket(int fd, const char *mode);
QEMUFile *qemu_fopen_channel_input(QIOChannel *ioc);
QEMUFile *qemu_fopen_channel_output(QIOChannel *ioc);
QEMUFile *qemu_popen_cmd(const char *command, const char *mode);
-QEMUFile *qemu_bufopen(const char *mode, QEMUSizedBuffer *input);
void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks);
int qemu_get_fd(QEMUFile *f);
int qemu_fclose(QEMUFile *f);
@@ -166,11 +165,6 @@ ssize_t qsb_write_at(QEMUSizedBuffer *qsb, const uint8_t *buf,
off_t pos, size_t count);
-/*
- * For use on files opened with qemu_bufopen
- */
-const QEMUSizedBuffer *qemu_buf_get(QEMUFile *f);
-
static inline void qemu_put_ubyte(QEMUFile *f, unsigned int v)
{
qemu_put_byte(f, (int)v);
diff --git a/migration/qemu-file-buf.c b/migration/qemu-file-buf.c
index 7b8e78e..668ab35 100644
--- a/migration/qemu-file-buf.c
+++ b/migration/qemu-file-buf.c
@@ -366,99 +366,3 @@ ssize_t qsb_write_at(QEMUSizedBuffer *qsb, const uint8_t *source,
return count;
}
-
-typedef struct QEMUBuffer {
- QEMUSizedBuffer *qsb;
- QEMUFile *file;
- bool qsb_allocated;
-} QEMUBuffer;
-
-static ssize_t buf_get_buffer(void *opaque, uint8_t *buf, int64_t pos,
- size_t size)
-{
- QEMUBuffer *s = opaque;
- ssize_t len = qsb_get_length(s->qsb) - pos;
-
- if (len <= 0) {
- return 0;
- }
-
- if (len > size) {
- len = size;
- }
- return qsb_get_buffer(s->qsb, pos, len, buf);
-}
-
-static ssize_t buf_put_buffer(void *opaque, const uint8_t *buf,
- int64_t pos, size_t size)
-{
- QEMUBuffer *s = opaque;
-
- return qsb_write_at(s->qsb, buf, pos, size);
-}
-
-static int buf_close(void *opaque)
-{
- QEMUBuffer *s = opaque;
-
- if (s->qsb_allocated) {
- qsb_free(s->qsb);
- }
-
- g_free(s);
-
- return 0;
-}
-
-const QEMUSizedBuffer *qemu_buf_get(QEMUFile *f)
-{
- QEMUBuffer *p;
-
- qemu_fflush(f);
-
- p = f->opaque;
-
- return p->qsb;
-}
-
-static const QEMUFileOps buf_read_ops = {
- .get_buffer = buf_get_buffer,
- .close = buf_close,
-};
-
-static const QEMUFileOps buf_write_ops = {
- .put_buffer = buf_put_buffer,
- .close = buf_close,
-};
-
-QEMUFile *qemu_bufopen(const char *mode, QEMUSizedBuffer *input)
-{
- QEMUBuffer *s;
-
- if (mode == NULL || (mode[0] != 'r' && mode[0] != 'w') ||
- mode[1] != '\0') {
- error_report("qemu_bufopen: Argument validity check failed");
- return NULL;
- }
-
- s = g_new0(QEMUBuffer, 1);
- s->qsb = input;
-
- if (s->qsb == NULL) {
- s->qsb = qsb_create(NULL, 0);
- s->qsb_allocated = true;
- }
- if (!s->qsb) {
- g_free(s);
- error_report("qemu_bufopen: qsb_create failed");
- return NULL;
- }
-
-
- if (mode[0] == 'r') {
- s->file = qemu_fopen_ops(s, &buf_read_ops);
- } else {
- s->file = qemu_fopen_ops(s, &buf_write_ops);
- }
- return s->file;
-}