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source: kBuild/trunk/src/kmk/output.h

最後變更 在這個檔案是 3479,由 bird 提交於 4 年 前

kmk: Added some refinements to the recent repeat-output-from-failing-command-in-die hack.

  • 屬性 svn:eol-style 設為 native
檔案大小: 3.5 KB
 
1/* Output to stdout / stderr for GNU make
2Copyright (C) 2013-2016 Free Software Foundation, Inc.
3This file is part of GNU Make.
4
5GNU Make is free software; you can redistribute it and/or modify it under the
6terms of the GNU General Public License as published by the Free Software
7Foundation; either version 3 of the License, or (at your option) any later
8version.
9
10GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
11WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12A PARTICULAR PURPOSE. See the GNU General Public License for more details.
13
14You should have received a copy of the GNU General Public License along with
15this program. If not, see <http://www.gnu.org/licenses/>. */
16
17#ifndef INCLUDED_MAKE_OUTPUT_H
18#define INCLUDED_MAKE_OUTPUT_H
19#include <stdio.h> /* darwin*/
20
21#ifdef CONFIG_WITH_OUTPUT_IN_MEMORY
22/* Output run. */
23struct output_run
24{
25 unsigned int seqno; /* For interleaving out/err output. */
26 unsigned int len; /* The length of the output. */
27 struct output_run *next; /* Pointer to the next run. */
28};
29
30/* Output segment. */
31struct output_segment
32{
33 struct output_segment *next;
34 size_t size; /* Segment size, everything included. */
35 struct output_run runs[1];
36};
37
38/* Output memory buffer. */
39struct output_membuf
40{
41 struct output_run *head_run;
42 struct output_run *tail_run; /* Always in tail_seg. */
43 struct output_segment *head_seg;
44 struct output_segment *tail_seg;
45 size_t left; /* Number of bytes that can be appended to
46 the tail_run. */
47 size_t total; /* Total segment allocation size. */
48};
49#endif /* CONFIG_WITH_OUTPUT_IN_MEMORY */
50
51struct output
52 {
53#ifdef CONFIG_WITH_OUTPUT_IN_MEMORY
54 struct output_membuf out;
55 struct output_membuf err;
56 unsigned int seqno; /* The current run sequence number. */
57#else
58 int out;
59 int err;
60#endif
61 unsigned int syncout:1; /* True if we want to synchronize output. */
62#ifdef KMK
63 unsigned int dont_truncate:1; /* For die_with_child_output repeat. */
64#endif
65 };
66
67extern struct output *output_context;
68extern unsigned int stdio_traced;
69#if defined(KMK) && !defined(NO_OUTPUT_SYNC)
70extern int output_metered;
71#endif
72
73#define OUTPUT_SET(_new) do{ output_context = (_new)->syncout ? (_new) : NULL; }while(0)
74#define OUTPUT_UNSET() do{ output_context = NULL; }while(0)
75
76#define OUTPUT_TRACED() do{ stdio_traced = 1; }while(0)
77#define OUTPUT_IS_TRACED() (!!stdio_traced)
78
79FILE *output_tmpfile (char **, const char *);
80
81/* Initialize and close a child output structure: if NULL do this program's
82 output (this should only be done once). */
83void output_init (struct output *out);
84void output_close (struct output *out);
85
86/* In situations where output may be about to be displayed but we're not
87 sure if we've set it up yet, call this. */
88void output_start (void);
89
90/* Show a message on stdout or stderr. Will start the output if needed. */
91void outputs (int is_err, const char *msg);
92#ifdef CONFIG_WITH_OUTPUT_IN_MEMORY
93ssize_t output_write_bin (struct output *out, int is_err, const char *src, size_t len);
94#endif
95ssize_t output_write_text (struct output *out, int is_err, const char *src, size_t len);
96
97#ifndef NO_OUTPUT_SYNC
98int output_tmpfd (void);
99/* Dump any child output content to stdout, and reset it. */
100void output_dump (struct output *out);
101# ifdef KMK
102void output_reset (struct output *out);
103# endif
104#endif
105
106#endif /* INLCUDED_MAKE_OUTPUT_H */
107
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