1 /* 2 OS 3 A veneer to simple library and OS services 4 Trivially implemented on ANSI platforms, but the Psion 5 gives better performance when the ANSI library is not used. 6 JBS 15 June 1994 7 */ 8 9 #ifndef _OS_ 10 11 #define _OS_ 12 13 #include "types.h" 14 15 typedef void *filep; 16 17 filep os_open_read(const char *); 18 filep os_wild_read(const char *); /* Search drives */ 19 filep os_open_write(const char *); 20 filep os_open_append(const char *); 21 int os_close(filep); 22 int os_seek_fore(filep, long_word); 23 int os_seek_back(filep, long_word); 24 int os_read(void *, size_t, int, filep); 25 int os_write(void *, size_t, int, filep); 26 27 void os_exit(int); 28 29 void os_mcpy(void *, void *, size_t); 30 void os_mset(char *, size_t, char); 31 32 void os_strcpy(char *, const char *); 33 void os_strcat(char *, const char *); 34 int os_strlen(const char *); 35 int os_strcmp(const char *, const char *); 36 37 void *os_alloc(size_t); 38 void os_free(void *); 39 void *os_realloc(void *, size_t); 40 41 char os_lower(char); 42 43 long_word os_time(void); 44 45 char *os_leaf(char *); 46 47 void os_patch_save(char *); /* Normalise to a save position filename */ 48 49 int os_strpos(char *, char); 50 51 #endif /* __MACHINE__ */ 52