2 * Copyright 2008-2009 Katholieke Universiteit Leuven
4 * Use of this software is governed by the GNU LGPLv2.1 license
6 * Written by Sven Verdoolaege, K.U.Leuven, Departement
7 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
17 #include <isl/options.h>
20 #include <isl/config.h>
26 #ifdef GCC_WARN_UNUSED_RESULT
27 #define WARN_UNUSED GCC_WARN_UNUSED_RESULT
32 #if defined(__cplusplus)
36 /* Nearly all isa functions require a struct isl_ctx allocated using
37 * isl_ctx_alloc. This ctx contains (or will contain) options that
38 * control the behavior of the library and some caches.
40 * An object allocated within a given ctx should never be used inside
41 * another ctx. Functions for moving objects from one ctx to another
42 * will be added as the need arises.
44 * A given context should only be used inside a single thread.
45 * A global context for synchronization between different threads
46 * as well as functions for moving a context to a different thread
47 * will be added as the need arises.
49 * If anything goes wrong (out of memory, failed assertion), then
50 * the library will currently simply abort. This will be made
51 * configurable in the future.
52 * Users of the library should expect functions that return
53 * a pointer to a structure, to return NULL, indicating failure.
54 * Any function accepting a pointer to a structure will treat
55 * a NULL argument as a failure, resulting in the function freeing
56 * the remaining structures (if any) and returning NULL itself
57 * (in case of pointer return type).
58 * The only exception is the isl_ctx argument, which shoud never be NULL.
73 struct isl_stats *stats;
76 struct isl_options *opt;
78 struct isl_arg *user_arg;
85 isl_int normalize_gcd;
88 struct isl_blk cache[ISL_BLK_CACHE_SIZE];
89 struct isl_hash_table name_hash;
93 typedef struct isl_ctx isl_ctx;
95 /* Some helper macros */
97 #define ISL_FL_INIT(l, f) (l) = (f) /* Specific flags location. */
98 #define ISL_FL_SET(l, f) ((l) |= (f))
99 #define ISL_FL_CLR(l, f) ((l) &= ~(f))
100 #define ISL_FL_ISSET(l, f) (!!((l) & (f)))
102 #define ISL_F_INIT(p, f) ISL_FL_INIT((p)->flags, f) /* Structure element flags. */
103 #define ISL_F_SET(p, f) ISL_FL_SET((p)->flags, f)
104 #define ISL_F_CLR(p, f) ISL_FL_CLR((p)->flags, f)
105 #define ISL_F_ISSET(p, f) ISL_FL_ISSET((p)->flags, f)
107 #define isl_alloc(ctx,type,size) (type *)malloc(size)
108 #define isl_calloc(ctx,type,size) (type *)calloc(1, size)
109 #define isl_realloc(ctx,ptr,type,size) (type *)realloc(ptr,size)
110 #define isl_alloc_type(ctx,type) isl_alloc(ctx,type,sizeof(type))
111 #define isl_calloc_type(ctx,type) isl_calloc(ctx,type,sizeof(type))
112 #define isl_realloc_type(ctx,ptr,type) isl_realloc(ctx,ptr,type,sizeof(type))
113 #define isl_alloc_array(ctx,type,n) isl_alloc(ctx,type,(n)*sizeof(type))
114 #define isl_calloc_array(ctx,type,n) (type *)calloc(n, sizeof(type))
115 #define isl_realloc_array(ctx,ptr,type,n) \
116 isl_realloc(ctx,ptr,type,(n)*sizeof(type))
118 #define isl_die(ctx,errno,msg,code) \
121 ctx->error = errno; \
122 fprintf(stderr, "%s:%d: %s\n", __FILE__, __LINE__, msg); \
125 #define isl_assert4(ctx,test,code,errno) \
129 isl_die(ctx, errno, "Assertion \"" #test "\" failed", code); \
131 #define isl_assert(ctx,test,code) \
132 isl_assert4(ctx,test,code,isl_error_unknown)
134 #define isl_min(a,b) ((a < b) ? (a) : (b))
136 /* struct isl_ctx functions */
138 struct isl_options *isl_ctx_options(isl_ctx *ctx);
140 isl_ctx *isl_ctx_alloc_with_options(struct isl_arg *arg, __isl_take void *opt);
141 isl_ctx *isl_ctx_alloc();
142 void *isl_ctx_peek_options(isl_ctx *ctx, struct isl_arg *arg);
143 void isl_ctx_ref(struct isl_ctx *ctx);
144 void isl_ctx_deref(struct isl_ctx *ctx);
145 void isl_ctx_free(isl_ctx *ctx);
147 #define ISL_ARG_CTX_DECL(prefix,st,arg) \
148 st *isl_ctx_peek_ ## prefix(isl_ctx *ctx);
150 #define ISL_ARG_CTX_DEF(prefix,st,arg) \
151 st *isl_ctx_peek_ ## prefix(isl_ctx *ctx) \
153 return (st *)isl_ctx_peek_options(ctx, arg); \
156 enum isl_error isl_ctx_last_error(isl_ctx *ctx);
157 void isl_ctx_reset_error(isl_ctx *ctx);
159 #if defined(__cplusplus)