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
13 static struct isl_options *find_nested_options(struct isl_arg *arg,
14 void *opt, struct isl_arg *wanted)
17 struct isl_options *options;
22 for (i = 0; arg[i].type != isl_arg_end; ++i) {
23 if (arg[i].type != isl_arg_child)
25 options = find_nested_options(arg[i].u.child.child,
26 *(void **)(((char *)opt) + arg->offset), wanted);
34 static struct isl_options *find_nested_isl_options(struct isl_arg *arg,
37 return find_nested_options(arg, opt, isl_options_arg);
40 void *isl_ctx_peek_options(isl_ctx *ctx, struct isl_arg *arg)
44 return find_nested_options(ctx->user_arg, ctx->user_opt, arg);
47 isl_ctx *isl_ctx_alloc_with_options(struct isl_arg *arg, void *user_opt)
49 struct isl_ctx *ctx = NULL;
50 struct isl_options *opt = NULL;
51 int opt_allocated = 0;
56 opt = find_nested_isl_options(arg, user_opt);
58 opt = isl_options_new_with_defaults();
64 ctx = isl_calloc_type(NULL, struct isl_ctx);
68 if (isl_hash_table_init(ctx, &ctx->name_hash, 0))
71 ctx->stats = isl_calloc_type(ctx, struct isl_stats);
76 ctx->user_opt = user_opt;
77 ctx->opt_allocated = opt_allocated;
81 isl_int_init(ctx->zero);
82 isl_int_set_si(ctx->zero, 0);
84 isl_int_init(ctx->one);
85 isl_int_set_si(ctx->one, 1);
87 isl_int_init(ctx->negone);
88 isl_int_set_si(ctx->negone, -1);
90 isl_int_init(ctx->normalize_gcd);
96 isl_arg_free(arg, user_opt);
98 isl_options_free(opt);
103 struct isl_ctx *isl_ctx_alloc()
105 struct isl_options *opt;
107 opt = isl_options_new_with_defaults();
109 return isl_ctx_alloc_with_options(isl_options_arg, opt);
112 void isl_ctx_ref(struct isl_ctx *ctx)
117 void isl_ctx_deref(struct isl_ctx *ctx)
119 isl_assert(ctx, ctx->ref > 0, return);
123 void isl_ctx_free(struct isl_ctx *ctx)
127 isl_assert(ctx, ctx->ref == 0, return);
128 isl_hash_table_clear(&ctx->name_hash);
129 isl_blk_clear_cache(ctx);
130 isl_int_clear(ctx->zero);
131 isl_int_clear(ctx->one);
132 isl_int_clear(ctx->negone);
133 isl_int_clear(ctx->normalize_gcd);
134 isl_arg_free(ctx->user_arg, ctx->user_opt);
135 if (ctx->opt_allocated)
141 struct isl_options *isl_ctx_options(isl_ctx *ctx)