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Juergen Gross
d2cad41def
There are some internals in the libxenstore interface which should be removed. Move those functions into xs_lib.c and the related definitions into xs_lib.h. Remove the functions from the mapfile. Add xs_lib.o to xenstore_client as some of the internal functions are needed there. Bump the libxenstore version to 4.0 as the change is incompatible. Note that the removed functions should not result in any problem as they ought to be used by xenstored or xenstore_client only. Avoid an enum as part of a structure as the size of an enum is compiler implementation dependent. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Ian Jackson <iwj@xenproject.org>
84 lines
1.7 KiB
C
84 lines
1.7 KiB
C
#ifndef _UTILS_H
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#define _UTILS_H
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#include <stdbool.h>
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#include <string.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <xen-tools/libs.h>
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#include "xenstore_lib.h"
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/* Header of the node record in tdb. */
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struct xs_tdb_record_hdr {
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uint64_t generation;
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uint32_t num_perms;
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uint32_t datalen;
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uint32_t childlen;
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struct xs_permissions perms[0];
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};
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/* Is A == B ? */
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#define streq(a,b) (strcmp((a),(b)) == 0)
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/* Does A start with B ? */
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#define strstarts(a,b) (strncmp((a),(b),strlen(b)) == 0)
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/* Does A end in B ? */
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static inline bool strends(const char *a, const char *b)
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{
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if (strlen(a) < strlen(b))
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return false;
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return streq(a + strlen(a) - strlen(b), b);
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}
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/*
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* Write NUL bytes for aligning state data to 8 bytes.
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*/
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const char *dump_state_align(FILE *fp);
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#define PRINTF_ATTRIBUTE(a1, a2) __attribute__((format (printf, a1, a2)))
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#define __noreturn __attribute__((noreturn))
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void barf(const char *fmt, ...) __noreturn PRINTF_ATTRIBUTE(1, 2);
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void barf_perror(const char *fmt, ...) __noreturn PRINTF_ATTRIBUTE(1, 2);
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/* Function pointer as xprintf() can be configured at runtime. */
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extern void (*xprintf)(const char *fmt, ...) PRINTF_ATTRIBUTE(1, 2);
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#define eprintf(_fmt, _args...) xprintf("[ERR] %s" _fmt, __FUNCTION__, ##_args)
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/*
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* Mux errno values onto returned pointers.
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*/
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static inline void *ERR_PTR(long error)
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{
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return (void *)error;
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}
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static inline long PTR_ERR(const void *ptr)
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{
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return (long)ptr;
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}
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static inline long IS_ERR(const void *ptr)
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{
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return ((unsigned long)ptr > (unsigned long)-1000L);
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}
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#endif /* _UTILS_H */
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/*
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* Local variables:
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* mode: C
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* c-file-style: "linux"
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* indent-tabs-mode: t
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* c-basic-offset: 8
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* tab-width: 8
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* End:
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*/
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