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make SCM_I_SETJMP and SCM_I_LONGJMP private

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* libguile/_scm.h (SCM_I_SETJMP, SCM_I_LONGJMP): Move to this private
  header.
* libguile/__scm.h (scm_i_jmp_buf): Only define the scm_i_jmp_buf type
  in this public header.
This commit is contained in:
Andy Wingo 2011-05-15 12:28:55 +02:00
parent 2acdd822fb
commit 04245bb72f
2 changed files with 44 additions and 30 deletions
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39
libguile/__scm.h
View file

@ -337,54 +337,33 @@ typedef void *scm_t_subr;
/* Setjmp and longjmp
/* scm_i_jmp_buf
*
* The corresponding SCM_I_SETJMP and SCM_I_LONGJMP are defined in the
* _scm.h private header.
*/
#if defined (vms)
/* VMS: Implement setjmp in terms of setjump. */
typedef int jmp_buf[17];
extern int setjump(jmp_buf env);
extern int longjump(jmp_buf env, int ret);
# define setjmp setjump
# define longjmp longjump
typedef int scm_i_jmp_buf[17];
#elif defined (_CRAY1)
/* Cray: Implement setjmp in terms of setjump. */
typedef int jmp_buf[112];
extern int setjump(jmp_buf env);
extern int longjump(jmp_buf env, int ret);
# define setjmp setjump
# define longjmp longjump
typedef int scm_i_jmp_buf[112];
#elif defined (__ia64__)
/* IA64: Implement setjmp in terms of getcontext. */
# include <signal.h>
# include <ucontext.h>
typedef struct {
ucontext_t ctx;
int fresh;
} scm_i_jmp_buf;
# define SCM_I_SETJMP(JB) \
( (JB).fresh = 1, \
getcontext (&((JB).ctx)), \
((JB).fresh ? ((JB).fresh = 0, 0) : 1) )
# define SCM_I_LONGJMP(JB,VAL) scm_ia64_longjmp (&(JB), VAL)
void scm_ia64_longjmp (scm_i_jmp_buf *, int);
#else
/* All other systems just use setjmp.h. */
# include <setjmp.h>
typedef jmp_buf scm_i_jmp_buf;
#endif
/* For any platform where SCM_I_SETJMP hasn't been defined in some
special way above, map SCM_I_SETJMP, SCM_I_LONGJMP and
scm_i_jmp_buf to setjmp, longjmp and jmp_buf. */
#ifndef SCM_I_SETJMP
#define scm_i_jmp_buf jmp_buf
#define SCM_I_SETJMP setjmp
#define SCM_I_LONGJMP longjmp
#endif
/* If stack is not longword aligned then
*/

35
libguile/_scm.h
View file

@ -191,6 +191,41 @@
#define scm_from_off64_t scm_from_int64
#if defined (vms)
/* VMS: Implement SCM_I_SETJMP in terms of setjump. */
extern int setjump(scm_i_jmp_buf env);
extern int longjump(scm_i_jmp_buf env, int ret);
#define SCM_I_SETJMP setjump
#define SCM_I_LONGJMP longjump
#elif defined (_CRAY1)
/* Cray: Implement SCM_I_SETJMP in terms of setjump. */
extern int setjump(scm_i_jmp_buf env);
extern int longjump(scm_i_jmp_buf env, int ret);
#define SCM_I_SETJMP setjump
#define SCM_I_LONGJMP longjump
#elif defined (__ia64__)
/* IA64: Implement SCM_I_SETJMP in terms of getcontext. */
# define SCM_I_SETJMP(JB) \
( (JB).fresh = 1, \
getcontext (&((JB).ctx)), \
((JB).fresh ? ((JB).fresh = 0, 0) : 1) )
# define SCM_I_LONGJMP(JB,VAL) scm_ia64_longjmp (&(JB), VAL)
void scm_ia64_longjmp (scm_i_jmp_buf *, int);
#else
/* All other systems just use setjmp and longjmp. */
#define SCM_I_SETJMP setjmp
#define SCM_I_LONGJMP longjmp
#endif
/* The endianness marker in objcode. */
#ifdef WORDS_BIGENDIAN
# define SCM_OBJCODE_ENDIANNESS "BE"