diogo/yap-6.3
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jupyter

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This commit is contained in:
Vitor Santos Costa
2018-01-05 16:57:38 +00:00
parent 814aa2bd4c
commit 9c862c21bc
271 changed files with 43711 additions and 6129 deletions
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55
include/VFS.h
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@@ -33,7 +33,6 @@
#include <encoding.h>
typedef struct {
dev_t st_dev; /* ID of device containing file */
mode_t st_mode; /* Mode of file (see below) */
@@ -50,13 +49,12 @@ typedef struct {
#endif
} vfs_stat;
typedef enum vfs_flags {
VFS_CAN_WRITE = 0x1, /// we can write to files in this space
VFS_CAN_EXEC = 0x2, /// we can execute files in this space
VFS_CAN_SEEK = 0x4, /// we can seek within files in this space
VFS_HAS_PREFIX = 0x8, /// has a prefix that identifies a file in this space
VFS_HAS_SUFFIX = 0x10, /// has a suffix that describes the file.
VFS_CAN_WRITE = 0x1, /// we can write to files in this space
VFS_CAN_EXEC = 0x2, /// we can execute files in this space
VFS_CAN_SEEK = 0x4, /// we can seek within files in this space
VFS_HAS_PREFIX = 0x8, /// has a prefix that identifies a file in this space
VFS_HAS_SUFFIX = 0x10, /// has a suffix that describes the file.
VFS_HAS_FUNCTION = 0x20 /// has a suffix that describes the file.
} vfs_flags_t;
@@ -80,27 +78,32 @@ typedef struct vfs {
const char *suffix;
bool (*chDir)(struct vfs *me, const char *s);
/** operations */
void *(*open)(struct vfs *,int sno, const char *fname, const char *io_mode); /// open an object
void *(*open)(struct vfs *, int sno, const char *fname,
const char *io_mode); /// open an object
/// in this space, usual w,r,a,b flags plus B (store in a buffer)
bool (*close)(int sno); /// close the object
int (*get_char)(int sno); /// get an octet to the stream
bool (*close)(int sno); /// close the object
int (*get_char)(int sno); /// get an octet from the stream
int (*peek_char)(int sno); /// unget an octet from the stream
int (*put_char)(int sno, int ch); /// output an octet to the stream
void (*flush)(int sno); /// flush a stream
void (*flush)(int sno); /// flush a stream
int64_t (*seek)(int sno, int64_t offset,
int whence); /// jump around the stream
void *(*opendir)(struct vfs *,const char *s); /// open a directory object, if one exists
const char *(*nextdir)(void *d); /// walk to the next entry in a directory object
void *(*opendir)(struct vfs *,
const char *s); /// open a directory object, if one exists
const char *(*nextdir)(
void *d); /// walk to the next entry in a directory object
bool (*closedir)(void *d);
; /// close access a directory object
bool (*stat)(struct vfs *,const char *s,
bool (*stat)(struct vfs *, const char *s,
vfs_stat *); /// obtain size, age, permissions of a file.
bool (*isdir)(struct vfs *,const char *s); /// verify whether is directory.
bool (*isdir)(struct vfs *, const char *s); /// verify whether is directory.
bool (*exists)(struct vfs *, const char *s); /// verify whether a file exists.
bool (*chdir)(struct vfs *,const char *s); /// set working directory (may be virtual).
encoding_t enc; /// default file encoded.
bool (*chdir)(struct vfs *,
const char *s); /// set working directory (may be virtual).
encoding_t enc; /// default file encoded.
YAP_Term (*parsers)(int sno); // a set of parsers that can read the
// stream and generate a YAP_Term
int (*writers)(int ch, int sno );
// stream and generate a YAP_Term
int (*writers)(int ch, int sno);
/// convert a YAP_Term into this space
const char *virtual_cwd;
/** VFS dep
@@ -113,7 +116,8 @@ extern VFS_t *GLOBAL_VFS;
extern void init_android_stream(void);
extern void Yap_InitStdStream(int sno, unsigned int flags, FILE *file, VFS_t *vfsp);
extern void Yap_InitStdStream(int sno, unsigned int flags, FILE *file,
VFS_t *vfsp);
static inline VFS_t *vfs_owner(const char *fname) {
VFS_t *me = GLOBAL_VFS;
@@ -124,12 +128,13 @@ static inline VFS_t *vfs_owner(const char *fname) {
bool p = true;
if ((me->vflags & VFS_HAS_PREFIX) && p) {
const char *r = fname, *s = me->prefix;
while (*s && p) p = *s++ == *r++;
if (p && r > fname+1)
return me;
while (*s && p)
p = *s++ == *r++;
if (p && r > fname + 1)
return me;
}
if (me->vflags & VFS_HAS_SUFFIX && (sz = strlen(me->suffix)) && (d = (sz0 - sz)) >= 0 &&
strcmp(fname + d, me->suffix) == 0) {
if (me->vflags & VFS_HAS_SUFFIX && (sz = strlen(me->suffix)) &&
(d = (sz0 - sz)) >= 0 && strcmp(fname + d, me->suffix) == 0) {
return me;
}
me = me->next;