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/*-
* Copyright (c) 1988, 1989, 1990, 1993
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1989 by Berkeley Softworks
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Adam de Boor.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef GNode_h_39503bf2
#define GNode_h_39503bf2
#include "lst.h"
#include "util.h"
struct Suff;
/*
* The structure for an individual graph node. Each node has several
* pieces of data associated with it.
*/
typedef struct GNode {
char *name; /* The target's name */
char *path; /* The full pathname of the target file */
/*
* The type of operator used to define the sources (qv. parse.c)
*
* The OP_ constants are used when parsing a dependency line as a way of
* communicating to other parts of the program the way in which a target
* should be made. These constants are bitwise-OR'ed together and
* placed in the 'type' field of each node. Any node that has
* a 'type' field which satisfies the OP_NOP function was never never on
* the lefthand side of an operator, though it may have been on the
* righthand side...
*/
int type;
#define OP_DEPENDS 0x00000001 /* Execution of commands depends on
* kids (:) */
#define OP_FORCE 0x00000002 /* Always execute commands (!) */
#define OP_DOUBLEDEP 0x00000004 /* Execution of commands depends on
* kids per line (::) */
#define OP_OPMASK (OP_DEPENDS|OP_FORCE|OP_DOUBLEDEP)
#define OP_OPTIONAL 0x00000008 /* Don't care if the target doesn't
* exist and can't be created */
#define OP_USE 0x00000010 /*
* Use associated commands for
* parents
*/
#define OP_EXEC 0x00000020 /* Target is never out of date, but
* always execute commands anyway.
* Its time doesn't matter, so it has
* none...sort of
*/
#define OP_IGNORE 0x00000040 /*
* Ignore errors when creating the node
*/
#define OP_PRECIOUS 0x00000080 /* Don't remove the target when
* interrupted */
#define OP_SILENT 0x00000100 /* Don't echo commands when executed */
#define OP_MAKE 0x00000200 /*
* Target is a recurrsive make so its
* commands should always be executed
* when it is out of date, regardless
* of the state of the -n or -t flags
*/
#define OP_JOIN 0x00000400 /* Target is out-of-date only if any of
* its children was out-of-date */
#define OP_INVISIBLE 0x00004000 /* The node is invisible to its parents.
* I.e. it doesn't show up in the
* parents's local variables. */
#define OP_NOTMAIN 0x00008000 /* The node is exempt from normal 'main
* target' processing in parse.c */
#define OP_PHONY 0x00010000 /* Not a file target; run always */
/* Attributes applied by PMake */
#define OP_TRANSFORM 0x80000000 /* The node is a transformation rule */
#define OP_MEMBER 0x40000000 /* Target is a member of an archive */
#define OP_LIB 0x20000000 /* Target is a library */
#define OP_ARCHV 0x10000000 /* Target is an archive construct */
#define OP_HAS_COMMANDS 0x08000000 /* Target has all the commands it
* should. Used when parsing to catch
* multiple commands for a target */
#define OP_SAVE_CMDS 0x04000000 /* Saving commands on .END (Compat) */
#define OP_DEPS_FOUND 0x02000000 /* Already processed by Suff_FindDeps */
/*
* OP_NOP will return TRUE if the node with the given type was not the
* object of a dependency operator
*/
#define OP_NOP(t) (((t) & OP_OPMASK) == 0x00000000)
int order; /* Its wait weight */
Boolean make; /* TRUE if this target needs to be remade */
/* Set to reflect the state of processing on this node */
enum {
UNMADE, /* Not examined yet */
/*
* Target is already being made. Indicates a cycle in the graph.
* (compat mode only)
*/
BEINGMADE,
MADE, /* Was out-of-date and has been made */
UPTODATE, /* Was already up-to-date */
/*
* An error occurred while it was being
* made (used only in compat mode)
*/
ERROR,
/*
* The target was aborted due to an
* error making an inferior (compat).
*/
ABORTED,
/*
* Marked as potentially being part of a graph cycle. If we
* come back to a node marked this way, it is printed and
* 'made' is changed to ENDCYCLE.
*/
CYCLE,
/*
* The cycle has been completely printed. Go back and
* unmark all its members.
*/
ENDCYCLE
} made;
/* TRUE if one of this target's children was made */
Boolean childMade;
int unmade; /* The number of unmade children */
int mtime; /* Its modification time */
int cmtime; /* Modification time of its youngest child */
struct GNode *cmtime_gn;/* Youngest child */
/*
* Links to parents for which this is an implied source, if any. (nodes
* that depend on this, as gleaned from the transformation rules.
*/
Lst iParents;
/* List of nodes of the same name created by the :: operator */
Lst cohorts;
/* Lst of nodes for which this is a source (that depend on this one) */
Lst parents;
/* List of nodes on which this depends */
Lst children;
/*
* List of nodes that must be made (if they're made) after this node is,
* but that do not depend on this node, in the normal sense.
*/
Lst successors;
/*
* List of nodes that must be made (if they're made) before this node
* can be, but that do no enter into the datedness of this node.
*/
Lst preds;
/*
* List of ``local'' variables that are specific to this target
* and this target only (qv. var.c [$@ $< $?, etc.])
*/
Lst context;
/*
* List of strings that are commands to be given to a shell
* to create this target.
*/
Lst commands;
/* current command executing in compat mode */
LstNode *compat_command;
/*
* Suffix for the node (determined by Suff_FindDeps and opaque to
* everyone but the Suff module)
*/
struct Suff *suffix;
} GNode;
#endif /* GNode_h_39503bf2 */
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