diff options
Diffstat (limited to 'lib/pipeline.h')
| -rw-r--r-- | lib/pipeline.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/lib/pipeline.h b/lib/pipeline.h index f880b898..f4909381 100644 --- a/lib/pipeline.h +++ b/lib/pipeline.h @@ -30,7 +30,8 @@ enum command_tag { COMMAND_PROCESS, - COMMAND_FUNCTION + COMMAND_FUNCTION, + COMMAND_SEQUENCE }; typedef void command_function_type (void *); @@ -60,6 +61,11 @@ typedef struct command { command_function_free_type *free_func; void *data; } function; + struct command_sequence { + int ncommands; + int commands_max; + struct command **commands; + } sequence; } u; } command; @@ -157,6 +163,15 @@ command *command_new_function (const char *name, command_function_free_type *free_func, void *data); +/* Construct a new command that runs a sequence of commands. The commands + * will be executed in forked children; if any exits non-zero then it will + * terminate the sequence, as with "&&" in shell. + * + * command_* functions that deal with arguments cannot be used with the + * command returned by this function. + */ +command *command_new_sequence (const char *name, ...) ATTRIBUTE_SENTINEL; + /* Return a duplicate of a command. */ command *command_dup (command *cmd); @@ -180,6 +195,9 @@ void command_argstr (command *cmd, const char *argstr); /* Set an environment variable while running this command. */ void command_setenv (command *cmd, const char *name, const char *value); +/* Add a command to a sequence. */ +void command_sequence_command (command *cmd, command *child); + /* Dump a string representation of a command to stream. */ void command_dump (command *cmd, FILE *stream); |