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