#ifndef GNODE_H #define GNODE_H /* $OpenPackages$ */ /* $OpenBSD: gnode.h,v 1.1 2001/05/23 12:34:43 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. */ #ifndef TIMESTAMP_TYPE #include "timestamp_t.h" #endif #ifndef LIST_TYPE #include "lst_t.h" #endif #ifndef SYMTABLE_H #include "symtable.h" #endif struct Suff_; /*- * 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. */ struct GNode_ { char *path; /* The full pathname of the file */ int type; /* Its type (see the OP flags, below) */ int order; /* Its wait weight */ bool make; /* true if this target needs to be remade */ enum { UNMADE, BEINGMADE, MADE, UPTODATE, ERROR, ABORTED, CYCLE, ENDCYCLE } made; /* Set to reflect the state of processing * on this node: * UNMADE - Not examined yet * BEINGMADE - Target is already being made. * Indicates a cycle in the graph. (compat * mode only) * MADE - Was out-of-date and has been made * UPTODATE - Was already up-to-date * ERROR - An error occured while it was being * made (used only in compat mode) * ABORTED - The target was aborted due to * an error making an inferior (compat). * CYCLE - 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. * ENDCYCLE - the cycle has been completely * printed. Go back and unmark all its * members. */ bool childMade; /* true if one of this target's children was * made */ int unmade; /* The number of unmade children */ TIMESTAMP mtime; /* Its modification time */ TIMESTAMP cmtime; /* The modification time of its youngest * child */ LIST iParents; /* Links to parents for which this is an * implied source, if any */ 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 */ unsigned long lineno; /* First line number of commands. */ const char * fname; /* File name of commands. */ LIST commands; /* Creation commands */ LstNode current; /* Current command, for job */ struct Suff_ *suffix; /* Suffix for the node (determined by * Suff_FindDeps and opaque to everyone * but the Suff module) */ char name[1]; /* The target's name */ }; /* * 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_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_MADE 0x00000800 /* Assume the node is already made; even if * it really is 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 */ #define OP_NOPATH 0x00020000 /* Don't search for file in the path */ /* 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) #define OP_NOTARGET (OP_NOTMAIN|OP_USE|OP_EXEC|OP_TRANSFORM) #endif