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qemu-io: add command completion
Autocomplete qemu-io commands at the interactive prompt. Note this only completes command names and not their options. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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@ -42,5 +42,8 @@ bool qemuio_command(BlockDriverState *bs, const char *cmd);
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void qemuio_add_command(const cmdinfo_t *ci);
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int qemuio_command_usage(const cmdinfo_t *ci);
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void qemuio_complete_command(const char *input,
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void (*fn)(const char *cmd, void *opaque),
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void *opaque);
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#endif /* QEMU_IO_H */
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@ -94,6 +94,21 @@ static const cmdinfo_t *find_command(const char *cmd)
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return NULL;
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}
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/* Invoke fn() for commands with a matching prefix */
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void qemuio_complete_command(const char *input,
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void (*fn)(const char *cmd, void *opaque),
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void *opaque)
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{
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cmdinfo_t *ct;
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size_t input_len = strlen(input);
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for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) {
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if (strncmp(input, ct->name, input_len) == 0) {
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fn(ct->name, opaque);
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}
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}
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}
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static char **breakline(char *input, int *count)
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{
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int c = 0;
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@ -236,9 +236,15 @@ static void readline_func(void *opaque, const char *str, void *readline_opaque)
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*line = g_strdup(str);
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}
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static void completion_match(const char *cmd, void *opaque)
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{
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readline_add_completion(readline_state, cmd);
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}
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static void readline_completion_func(void *opaque, const char *str)
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{
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/* No command or argument completion implemented yet */
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readline_set_completion_index(readline_state, strlen(str));
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qemuio_complete_command(str, completion_match, NULL);
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}
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static char *fetchline_readline(void)
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