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-rw-r--r--src/kmk/output.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/src/kmk/output.h b/src/kmk/output.h
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+++ b/src/kmk/output.h
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+/* Output to stdout / stderr for GNU make
+Copyright (C) 2013-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef INCLUDED_MAKE_OUTPUT_H
+#define INCLUDED_MAKE_OUTPUT_H
+#include <stdio.h> /* darwin*/
+
+#ifdef CONFIG_WITH_OUTPUT_IN_MEMORY
+/* Output run. */
+struct output_run
+{
+ unsigned int seqno; /* For interleaving out/err output. */
+ unsigned int len; /* The length of the output. */
+ struct output_run *next; /* Pointer to the next run. */
+};
+
+/* Output segment. */
+struct output_segment
+{
+ struct output_segment *next;
+ size_t size; /* Segment size, everything included. */
+ struct output_run runs[1];
+};
+
+/* Output memory buffer. */
+struct output_membuf
+{
+ struct output_run *head_run;
+ struct output_run *tail_run; /* Always in tail_seg. */
+ struct output_segment *head_seg;
+ struct output_segment *tail_seg;
+ size_t left; /* Number of bytes that can be appended to
+ the tail_run. */
+ size_t total; /* Total segment allocation size. */
+};
+#endif /* CONFIG_WITH_OUTPUT_IN_MEMORY */
+
+struct output
+ {
+#ifdef CONFIG_WITH_OUTPUT_IN_MEMORY
+ struct output_membuf out;
+ struct output_membuf err;
+ unsigned int seqno; /* The current run sequence number. */
+#else
+ int out;
+ int err;
+#endif
+ unsigned int syncout:1; /* True if we want to synchronize output. */
+#ifdef KMK
+ unsigned int dont_truncate:1; /* For die_with_child_output repeat. */
+#endif
+ };
+
+extern struct output *output_context;
+extern unsigned int stdio_traced;
+#if defined(KMK) && !defined(NO_OUTPUT_SYNC)
+extern int output_metered;
+#endif
+
+#define OUTPUT_SET(_new) do{ output_context = (_new)->syncout ? (_new) : NULL; }while(0)
+#define OUTPUT_UNSET() do{ output_context = NULL; }while(0)
+
+#define OUTPUT_TRACED() do{ stdio_traced = 1; }while(0)
+#define OUTPUT_IS_TRACED() (!!stdio_traced)
+
+FILE *output_tmpfile (char **, const char *);
+
+/* Initialize and close a child output structure: if NULL do this program's
+ output (this should only be done once). */
+void output_init (struct output *out);
+void output_close (struct output *out);
+
+/* In situations where output may be about to be displayed but we're not
+ sure if we've set it up yet, call this. */
+void output_start (void);
+
+/* Show a message on stdout or stderr. Will start the output if needed. */
+void outputs (int is_err, const char *msg);
+#ifdef CONFIG_WITH_OUTPUT_IN_MEMORY
+ssize_t output_write_bin (struct output *out, int is_err, const char *src, size_t len);
+#endif
+ssize_t output_write_text (struct output *out, int is_err, const char *src, size_t len);
+
+#ifndef NO_OUTPUT_SYNC
+int output_tmpfd (void);
+/* Dump any child output content to stdout, and reset it. */
+void output_dump (struct output *out);
+# ifdef KMK
+void output_reset (struct output *out);
+# endif
+#endif
+
+#endif /* INLCUDED_MAKE_OUTPUT_H */
+