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679cb8e1a1
printf() & friends return the number of characters written on success, negative value on error. monitor_printf(), monitor_vfprintf(), monitor_vprintf(), error_printf(), error_printf_unless_qmp(), error_vprintf(), and error_vprintf_unless_qmp() return void. Some of them carry a TODO comment asking for int instead. Improve them to return int like printf() does. This makes our use of monitor_printf() as fprintf_function slightly less dirty: the function cast no longer adds a return value that isn't there. It still changes a parameter's pointer type. That will be addressed in a future commit. monitor_vfprintf() always returns zero. Improve it to return the proper value. Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20190417190641.26814-11-armbru@redhat.com>
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
#ifndef MONITOR_H
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#define MONITOR_H
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#include "qemu-common.h"
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#include "block/block.h"
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#include "qapi/qapi-types-misc.h"
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#include "qemu/readline.h"
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extern __thread Monitor *cur_mon;
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/* flags for monitor_init */
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/* 0x01 unused */
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#define MONITOR_USE_READLINE 0x02
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#define MONITOR_USE_CONTROL 0x04
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#define MONITOR_USE_PRETTY 0x08
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#define QMP_REQ_QUEUE_LEN_MAX 8
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bool monitor_cur_is_qmp(void);
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void monitor_init_globals(void);
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void monitor_init(Chardev *chr, int flags);
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void monitor_cleanup(void);
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int monitor_suspend(Monitor *mon);
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void monitor_resume(Monitor *mon);
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int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp);
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int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp);
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int monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
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GCC_FMT_ATTR(2, 0);
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int monitor_printf(Monitor *mon, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
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int monitor_fprintf(FILE *stream, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
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void monitor_flush(Monitor *mon);
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int monitor_set_cpu(int cpu_index);
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int monitor_get_cpu_index(void);
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void monitor_read_command(Monitor *mon, int show_prompt);
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int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
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void *opaque);
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AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
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bool has_opaque, const char *opaque,
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Error **errp);
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int monitor_fdset_get_fd(int64_t fdset_id, int flags);
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int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd);
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void monitor_fdset_dup_fd_remove(int dup_fd);
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int monitor_fdset_dup_fd_find(int dup_fd);
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int monitor_vfprintf(FILE *stream,
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const char *fmt, va_list ap) GCC_FMT_ATTR(2, 0);
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#endif /* MONITOR_H */
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