rename IOCanRWHandler to IOCanReadHandler

It was always only used for reads
Signed-off-by: NJuan Quintela <quintela@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

qemu-char.c

@@ -182,7 +182,7 @@ void qemu_chr_send_event(CharDriverState *s, int event)
 }
 
 void qemu_chr_add_handlers(CharDriverState *s,
-                           IOCanRWHandler *fd_can_read,
+                           IOCanReadHandler *fd_can_read,
                            IOReadHandler *fd_read,
                            IOEventHandler *fd_event,
                            void *opaque)
@@ -214,7 +214,7 @@ static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
 #define MUX_BUFFER_SIZE 32	/* Must be a power of 2.  */
 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
 typedef struct {
-    IOCanRWHandler *chr_can_read[MAX_MUX];
+    IOCanReadHandler *chr_can_read[MAX_MUX];
     IOReadHandler *chr_read[MAX_MUX];
     IOEventHandler *chr_event[MAX_MUX];
     void *ext_opaque[MAX_MUX];

qemu-char.h

@@ -57,7 +57,7 @@ struct CharDriverState {
     int (*chr_ioctl)(struct CharDriverState *s, int cmd, void *arg);
     int (*get_msgfd)(struct CharDriverState *s);
     IOEventHandler *chr_event;
-    IOCanRWHandler *chr_can_read;
+    IOCanReadHandler *chr_can_read;
     IOReadHandler *chr_read;
     void *handler_opaque;
     void (*chr_send_event)(struct CharDriverState *chr, int event);
@@ -79,7 +79,7 @@ void qemu_chr_printf(CharDriverState *s, const char *fmt, ...);
 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len);
 void qemu_chr_send_event(CharDriverState *s, int event);
 void qemu_chr_add_handlers(CharDriverState *s,
-                           IOCanRWHandler *fd_can_read,
+                           IOCanReadHandler *fd_can_read,
                            IOReadHandler *fd_read,
                            IOEventHandler *fd_event,
                            void *opaque);
@@ -98,7 +98,7 @@ extern int term_escape_char;
 /* async I/O support */
 
 int qemu_set_fd_handler2(int fd,
-                         IOCanRWHandler *fd_read_poll,
+                         IOCanReadHandler *fd_read_poll,
                          IOHandler *fd_read,
                          IOHandler *fd_write,
                          void *opaque);
@@ -106,5 +106,4 @@ int qemu_set_fd_handler(int fd,
                         IOHandler *fd_read,
                         IOHandler *fd_write,
                         void *opaque);
-
 #endif

qemu-common.h

@@ -184,7 +184,7 @@ void QEMU_NORETURN hw_error(const char *fmt, ...)
 
 /* IO callbacks.  */
 typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size);
-typedef int IOCanRWHandler(void *opaque);
+typedef int IOCanReadHandler(void *opaque);
 typedef void IOHandler(void *opaque);
 
 struct ParallelIOArg {

qemu-tool.c

@@ -89,7 +89,7 @@ void qemu_bh_delete(QEMUBH *bh)
 }
 
 int qemu_set_fd_handler2(int fd,
-                         IOCanRWHandler *fd_read_poll,
+                         IOCanReadHandler *fd_read_poll,
                          IOHandler *fd_read,
                          IOHandler *fd_write,
                          void *opaque)

vl.c

@@ -1550,7 +1550,7 @@ void pcmcia_info(Monitor *mon)
 
 typedef struct IOHandlerRecord {
     int fd;
-    IOCanRWHandler *fd_read_poll;
+    IOCanReadHandler *fd_read_poll;
     IOHandler *fd_read;
     IOHandler *fd_write;
     int deleted;
@@ -1567,7 +1567,7 @@ static QLIST_HEAD(, IOHandlerRecord) io_handlers =
 /* XXX: fd_read_poll should be suppressed, but an API change is
    necessary in the character devices to suppress fd_can_read(). */
 int qemu_set_fd_handler2(int fd,
-                         IOCanRWHandler *fd_read_poll,
+                         IOCanReadHandler *fd_read_poll,
                          IOHandler *fd_read,
                          IOHandler *fd_write,
                          void *opaque)