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Up to [local] / src / usr.bin / make

remove TIMESTAMP abstraction layer, prodded by theo.
while there, clean up includes.
use strtoll for ar timestamps (pretty much unused in reality, more
standard conforming than anything)

use idea from Todd to adapt to time_t being 32 bits OR 64 bits
(pedantically correct: INT_MIN would work just fine up to 1910 or so...)

okay millert@, gone thru a make build.

#ifndef GNODE_H
#define GNODE_H
/*	$OpenBSD: gnode.h,v 1.24 2013/04/23 14:32:53 espie Exp $ */

/*
 * Copyright (c) 2001 Marc Espie.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT 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 OPENBSD
 * PROJECT 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.
 */

#include <sys/time.h>
#ifndef LIST_TYPE
#include "lst_t.h"
#endif
#ifndef LOCATION_TYPE
#include "location.h"
#endif
#ifndef SYMTABLE_H
#include "symtable.h"
#endif

/*-
 * The structure for an individual graph node. Each node has several
 * pieces of data associated with it.
 *	1) the name of the target it describes
 *	2) the location of the target file in the file system.
 *	3) the type of operator used to define its sources (qv. parse.c)
 *	4) whether it is involved in this invocation of make
 *	5) whether the target has been remade
 *	6) whether any of its children has been remade
 *	7) the number of its children that are, as yet, unmade
 *	8) its modification time
 *	9) the modification time of its youngest child (qv. make.c)
 *	10) a list of nodes for which this is a source
 *	11) a list of nodes on which this depends
 *	12) a list of nodes that depend on this, as gleaned from the
 *	    transformation rules.
 *	13) a list of nodes of the same name created by the :: operator
 *	14) a 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.
 *	15) a 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.
 *	16) a Lst of ``local'' variables that are specific to this target
 *	   and this target only (qv. var.c [$@ $< $?, etc.])
 *	17) a Lst of strings that are commands to be given to a shell
 *	   to create this target.
 */

#define UNKNOWN		0
#define BEINGMADE	1
#define MADE		2
#define UPTODATE	3
#define ERROR		4
#define ABORTED		5
#define CYCLE		6
#define ENDCYCLE	7
#define NOSUCHNODE	8
#define BUILDING	9
#define HELDBACK	10

#define SPECIAL_NONE	0U
#define SPECIAL_PATH		21U
#define SPECIAL_MASK		63U
#define SPECIAL_TARGET		64U
#define SPECIAL_SOURCE		128U
#define SPECIAL_TARGETSOURCE	(SPECIAL_TARGET|SPECIAL_SOURCE)

#define	SPECIAL_EXEC		4U
#define SPECIAL_IGNORE		5U
#define SPECIAL_NOTHING 	6U
#define	SPECIAL_INVISIBLE	8U
#define SPECIAL_JOIN		9U
#define SPECIAL_MADE		11U
#define SPECIAL_MAIN		12U
#define SPECIAL_MAKE		13U
#define SPECIAL_MFLAGS		14U
#define	SPECIAL_NOTMAIN		15U
#define	SPECIAL_NOTPARALLEL	16U
#define	SPECIAL_OPTIONAL	18U
#define SPECIAL_ORDER		19U
#define SPECIAL_PARALLEL	20U
#define SPECIAL_PHONY		22U
#define SPECIAL_PRECIOUS	23U
#define SPECIAL_SILENT		25U
#define SPECIAL_SUFFIXES	27U
#define	SPECIAL_USE		28U
#define SPECIAL_WAIT		29U
#define SPECIAL_NOPATH		30U
#define SPECIAL_ERROR		31U
#define SPECIAL_CHEAP		32U
#define SPECIAL_EXPENSIVE	33U

struct GNode_ {
    unsigned int special_op;	/* special op to apply */
    unsigned char special;/* type of special node */
    char must_make;	/* true if this target needs to be remade */
    char childMade;	/* true if one of this target's children was
			 * made */
    char built_status;	/* Set to reflect the state of processing
			 * on this node:
			 *  UNKNOWN - Not examined yet
			 *  BEINGMADE - Target is currently being made.
			 *  BUILDING - There is a job running
			 *  MADE - Was out-of-date and has been made
			 *  UPTODATE - Was already up-to-date
			 *  ERROR - An error occurred while it was being
			 *	made (used only in compat mode)
			 *  ABORTED - The target was aborted due to
			 *	an error making an inferior.
			 *  CYCLE - Marked as potentially being part of
			 *	a graph cycle. If we come back to a
			 *	node marked this way, it is printed
			 *	and 'built_status' is changed to ENDCYCLE.
			 *  ENDCYCLE - the cycle has been completely
			 *	printed. Go back and unmark all its
			 *	members.
			 */
    char *path;		/* The full pathname of the file */
    unsigned int type;	/* Its type (see the OP flags, below) */
    int order;		/* Its wait weight */

    int unmade;		/* The number of unmade children */

    struct timespec mtime;	/* Its modification time */
    struct timespec cmtime;	/* The modification time of its youngest
			 	 * child */

    GNode *impliedsrc;
    LIST cohorts;	/* Other nodes for the :: operator */
    LIST parents;	/* Nodes that depend on this one */
    LIST children;	/* Nodes on which this one depends */
    LIST successors; 	/* Nodes that must be made after this one */
    LIST preds;		/* Nodes that must be made before this one */

    SymTable context;	/* The local variables */
    LIST commands;	/* Creation commands */
    Suff *suffix;	/* Suffix for the node (determined by
			 * Suff_FindDeps and opaque to everyone
			 * but the Suff module) */
    GNode *sibling;	/* equivalent targets */
    GNode *groupling;	/* target lists */
    GNode *watched;	/* the node currently building */
    /* stuff for target name equivalence */
    char *basename;	/* pointer to name stripped of path */
    GNode *next;
    char name[1];	/* The target's name */
};

struct command
{
	Location location;
	char string[1];
};

#define has_been_built(gn) \
	((gn)->built_status == MADE || (gn)->built_status == UPTODATE)
#define should_have_file(gn) \
	((gn)->special == SPECIAL_NONE && \
	((gn)->type & (OP_PHONY | OP_DUMMY)) == 0)
/*
 * 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...
 */
#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_ERROR	0x00000000
#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 recursive 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_MADE 	0x00000800  /* Assume the node is already made; even if
				     * it really is out of date */
#define OP_INVISIBLE	0x00001000  /* The node is invisible to its parents.
				     * I.e. it doesn't show up in the parents's
				     * local variables. */
#define OP_NOTMAIN	0x00002000  /* The node is exempt from normal 'main
				     * target' processing in parse.c */
#define OP_PHONY	0x00004000  /* Not a file target; run always */
#define OP_NOPATH	0x00008000  /* Don't search for file in the path */
#define OP_NODEFAULT	0x00010000  /* Special node that never needs */
				    /* DEFAULT commands applied */
#define OP_DUMMY	0x00020000  /* node was created by default, but it */
				    /* does not really exist. */
/* Attributes applied by PMake */
#define OP_TRANSFORM	0x00040000  /* The node is a transformation rule */
#define OP_MEMBER	0x00080000  /* Target is a member of an archive */
#define OP_DOUBLE	0x00100000  /* normal op with double commands */
#define OP_ARCHV	0x00200000  /* Target is an archive construct */
#define OP_HAS_COMMANDS 0x00400000  /* Target has all the commands it should.
				     * Used when parsing to catch multiple
				     * commands for a target */
#define OP_DEPS_FOUND	0x00800000  /* Already processed by Suff_FindDeps */
#define OP_RESOLVED	0x01000000  /* We looked harder already */
#define OP_CHEAP	0x02000000  /* Assume job is not recursive */
#define OP_EXPENSIVE	0x04000000  /* Recursive job, don't run in parallel */

/*
 * 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)

#define OP_NOTARGET (OP_NOTMAIN|OP_USE|OP_EXEC|OP_TRANSFORM)


#endif