#ifndef __SUBCMD_RUN_COMMAND_H #define __SUBCMD_RUN_COMMAND_H #include enum { ERR_RUN_COMMAND_FORK = 10000, ERR_RUN_COMMAND_EXEC, ERR_RUN_COMMAND_PIPE, ERR_RUN_COMMAND_WAITPID, ERR_RUN_COMMAND_WAITPID_WRONG_PID, ERR_RUN_COMMAND_WAITPID_SIGNAL, ERR_RUN_COMMAND_WAITPID_NOEXIT, }; #define IS_RUN_COMMAND_ERR(x) (-(x) >= ERR_RUN_COMMAND_FORK) struct child_process { const char **argv; pid_t pid; /* * Using .in, .out, .err: * - Specify 0 for no redirections (child inherits stdin, stdout, * stderr from parent). * - Specify -1 to have a pipe allocated as follows: * .in: returns the writable pipe end; parent writes to it, * the readable pipe end becomes child's stdin * .out, .err: returns the readable pipe end; parent reads from * it, the writable pipe end becomes child's stdout/stderr * The caller of start_command() must close the returned FDs * after it has completed reading from/writing to it! * - Specify > 0 to set a channel to a particular FD as follows: * .in: a readable FD, becomes child's stdin * .out: a writable FD, becomes child's stdout/stderr * .err > 0 not supported * The specified FD is closed by start_command(), even in case * of errors! */ int in; int out; int err; const char *dir; const char *const *env; unsigned no_stdin:1; unsigned no_stdout:1; unsigned no_stderr:1; unsigned exec_cmd:1; /* if this is to be external sub-command */ unsigned stdout_to_stderr:1; void (*preexec_cb)(void); }; int start_command(struct child_process *); int finish_command(struct child_process *); int run_command(struct child_process *); #define RUN_COMMAND_NO_STDIN 1 #define RUN_EXEC_CMD 2 /*If this is to be external sub-command */ #define RUN_COMMAND_STDOUT_TO_STDERR 4 int run_command_v_opt(const char **argv, int opt); #endif /* __SUBCMD_RUN_COMMAND_H */ logtreecommitdiff
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-22 12:47:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-22 12:47:48 -0800
commit095cbe66973771fecd8e8b1e8763181363ef703e (patch)
treec361a93d62ed171ac958deb0d4ff0faa980bb290 /tools/testing/selftests/rcutorture/doc/rcu-test-image.txt
parent24b86839fab8e8059d2b16e0067dc86a1a0d3514 (diff)
parent020eb3daaba2857b32c4cf4c82f503d6a00a67de (diff)
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner: "Restore the retrigger callbacks in the IO APIC irq chips. That addresses a long standing regression which got introduced with the rewrite of the x86 irq subsystem two years ago and went unnoticed so far" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/ioapic: Restore IO-APIC irq_chip retrigger callback
Diffstat (limited to 'tools/testing/selftests/rcutorture/doc/rcu-test-image.txt')