libopkg/pkg_depends.h

   1 /* pkg_depends.h - the opkg package management system
   2
   3    Steven M. Ayer
   4
   5    Copyright (C) 2002 Compaq Computer Corporation
   6
   7    This program is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU General Public License as
   9    published by the Free Software Foundation; either version 2, or (at
  10    your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16 */
  17
  18 #ifndef PKG_DEPENDS_H
  19 #define PKG_DEPENDS_H
  20
  21 #include "pkg.h"
  22 #include "pkg_hash.h"
  23 #include "includes.h"
  24
  25 enum depend_type {
  26     PREDEPEND,
  27     DEPEND,
  28     CONFLICTS,
  29     GREEDY_DEPEND,
  30     RECOMMEND,
  31     SUGGEST
  32 };
  33 typedef enum depend_type depend_type_t;
  34
  35 enum version_constraint {
  36     NONE,
  37     EARLIER,
  38     EARLIER_EQUAL,
  39     EQUAL,
  40     LATER_EQUAL,
  41     LATER
  42 };
  43 typedef enum version_constraint version_constraint_t;
  44
  45 struct depend{
  46     version_constraint_t constraint;
  47     char * version;
  48     abstract_pkg_t * pkg;
  49 };
  50 typedef struct depend depend_t;
  51
  52 struct compound_depend{
  53     depend_type_t type;
  54     int possibility_count;
  55     struct depend ** possibilities;
  56 };
  57 typedef struct compound_depend compound_depend_t;
  58
  59 void buildProvides(abstract_pkg_t * ab_pkg, pkg_t * pkg);
  60 void buildConflicts(pkg_t * pkg);
  61 void buildReplaces(abstract_pkg_t * ab_pkg, pkg_t * pkg);
  62 void buildDepends(pkg_t * pkg);
  63
  64 /**
  65  * pkg_replaces returns 1 if pkg->replaces contains one of replacee's provides and 0
  66  * otherwise.
  67  */
  68 int pkg_replaces(pkg_t *pkg, pkg_t *replacee);
  69
  70 /**
  71  * pkg_conflicts_abstract returns 1 if pkg->conflicts contains conflictee provides and 0
  72  * otherwise.
  73  */
  74 int pkg_conflicts_abstract(pkg_t *pkg, abstract_pkg_t *conflicts);
  75
  76 /**
  77  * pkg_conflicts returns 1 if pkg->conflicts contains one of conflictee's provides and 0
  78  * otherwise.
  79  */
  80 int pkg_conflicts(pkg_t *pkg, pkg_t *conflicts);
  81
  82 char *pkg_depend_str(pkg_t *pkg, int index);
  83 void buildDependedUponBy(pkg_t * pkg, abstract_pkg_t * ab_pkg);
  84 int version_constraints_satisfied(depend_t * depends, pkg_t * pkg);
  85 int pkg_hash_fetch_unsatisfied_dependencies(pkg_t * pkg, pkg_vec_t *depends, char *** unresolved);
  86 pkg_vec_t * pkg_hash_fetch_conflicts(pkg_t * pkg);
  87 int pkg_dependence_satisfiable(depend_t *depend);
  88 int pkg_dependence_satisfied(depend_t *depend);
  89 const char* constraint_to_str(enum version_constraint c);
  90
  91 #endif