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Source at commit ec7cab4cbb721bff91ec924ec691efd8daf36579 created 12 years 8 months ago. By Maarten ter Huurne, MIPS: JZ4740: A320: Updated quickstart documentation. | |
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1 | #ifndef __PERF_RUN_COMMAND_H |
2 | #define __PERF_RUN_COMMAND_H |
3 | |
4 | enum { |
5 | ERR_RUN_COMMAND_FORK = 10000, |
6 | ERR_RUN_COMMAND_EXEC, |
7 | ERR_RUN_COMMAND_PIPE, |
8 | ERR_RUN_COMMAND_WAITPID, |
9 | ERR_RUN_COMMAND_WAITPID_WRONG_PID, |
10 | ERR_RUN_COMMAND_WAITPID_SIGNAL, |
11 | ERR_RUN_COMMAND_WAITPID_NOEXIT, |
12 | }; |
13 | #define IS_RUN_COMMAND_ERR(x) (-(x) >= ERR_RUN_COMMAND_FORK) |
14 | |
15 | struct child_process { |
16 | const char **argv; |
17 | pid_t pid; |
18 | /* |
19 | * Using .in, .out, .err: |
20 | * - Specify 0 for no redirections (child inherits stdin, stdout, |
21 | * stderr from parent). |
22 | * - Specify -1 to have a pipe allocated as follows: |
23 | * .in: returns the writable pipe end; parent writes to it, |
24 | * the readable pipe end becomes child's stdin |
25 | * .out, .err: returns the readable pipe end; parent reads from |
26 | * it, the writable pipe end becomes child's stdout/stderr |
27 | * The caller of start_command() must close the returned FDs |
28 | * after it has completed reading from/writing to it! |
29 | * - Specify > 0 to set a channel to a particular FD as follows: |
30 | * .in: a readable FD, becomes child's stdin |
31 | * .out: a writable FD, becomes child's stdout/stderr |
32 | * .err > 0 not supported |
33 | * The specified FD is closed by start_command(), even in case |
34 | * of errors! |
35 | */ |
36 | int in; |
37 | int out; |
38 | int err; |
39 | const char *dir; |
40 | const char *const *env; |
41 | unsigned no_stdin:1; |
42 | unsigned no_stdout:1; |
43 | unsigned no_stderr:1; |
44 | unsigned perf_cmd:1; /* if this is to be perf sub-command */ |
45 | unsigned stdout_to_stderr:1; |
46 | void (*preexec_cb)(void); |
47 | }; |
48 | |
49 | int start_command(struct child_process *); |
50 | int finish_command(struct child_process *); |
51 | int run_command(struct child_process *); |
52 | |
53 | #define RUN_COMMAND_NO_STDIN 1 |
54 | #define RUN_PERF_CMD 2 /*If this is to be perf sub-command */ |
55 | #define RUN_COMMAND_STDOUT_TO_STDERR 4 |
56 | int run_command_v_opt(const char **argv, int opt); |
57 | |
58 | #endif /* __PERF_RUN_COMMAND_H */ |
59 |
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