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ef2a063169
I did a brief audit of tmpctx uses, and we do leak them in various corner cases. Fortunely, all our daemons are based on some kind of I/O loop, so it's fairly easy to clean a global tmpctx at that point. This makes things a bit neater, and slightly more efficient, but also clearer: I avoided creating a tmpctx in a few places because I didn't want to add another allocation. With that penalty removed, I can use it more freely and hopefully write clearer code. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
32 lines
930 B
C
32 lines
930 B
C
#ifndef LIGHTNING_COMMON_UTILS_H
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#define LIGHTNING_COMMON_UTILS_H
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#include "config.h"
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#include <ccan/short_types/short_types.h>
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#include <ccan/tal/tal.h>
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#include <secp256k1.h>
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extern secp256k1_context *secp256k1_ctx;
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/* Allocate and fill in a hex-encoded string of this data. */
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char *tal_hexstr(const tal_t *ctx, const void *data, size_t len);
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/* Allocate and fill a hex-encoding of this tal pointer. */
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char *tal_hex(const tal_t *ctx, const tal_t *data);
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/* Allocate and fill a buffer with the data of this hex string. */
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u8 *tal_hexdata(const tal_t *ctx, const void *str, size_t len);
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/* FIXME: Remove in favor of global */
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#define tal_tmpctx(ctx) tal((ctx), char)
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/* Global temporary convenience context: freed in io loop core. */
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extern const tal_t *tmpctx;
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/* Initial creation of tmpctx. */
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void setup_tmpctx(void);
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/* Free any children of tmpctx. */
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void clean_tmpctx(void);
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#endif /* LIGHTNING_COMMON_UTILS_H */
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