diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/syscalls.c | 10 | ||||
| -rw-r--r-- | kernel/syscalls.h | 9 |
2 files changed, 9 insertions, 10 deletions
diff --git a/kernel/syscalls.c b/kernel/syscalls.c index 8246df8..6707ec3 100644 --- a/kernel/syscalls.c +++ b/kernel/syscalls.c @@ -128,12 +128,10 @@ int syscall_write(int file, char *buf, int len) return len; } -int chk_syscall_read(int file, char *buf, int len) -{ - if(len> fifo_data_len[file])return 0; - return 1; -} - +/** + * __read()__ attemts to read up to _len_ bytes from file descriptor _file_ + * into the buffer starting at _buf_. + */ int syscall_read(int file, char *buf, int len) { //file 0 = stdin , file 1 = stdout , file 2 = stderr diff --git a/kernel/syscalls.h b/kernel/syscalls.h index 8b88e6a..b31d32c 100644 --- a/kernel/syscalls.h +++ b/kernel/syscalls.h @@ -6,11 +6,11 @@ #define SYSCALL_OPEN 65 #define SYSCALL_GETPID 78 -#define SYSCALL_ISATTY 68 +#define SYSCALL_ISATTY 68 // linux?? #define SYSCALL_LINK 82 #define SYSCALL_LSEEK 69 #define SYSCALL_READ 62 -#define SYSCALL_SBRK 70 +#define SYSCALL_SBRK 70 // linux?? #define SYSCALL_STAT 74 #define SYSCALL_FSTAT 67 #define SYSCALL_LSTAT 79 @@ -19,14 +19,15 @@ #define SYSCALL_WAIT 77 #define SYSCALL_WRITE 61 #define SYSCALL_GETTIMEOFDAY 71 -#define SYSCALL_READDIR 63 +#define SYSCALL_READDIR 63 // getdents? #define SYSCALL_KILL 73 #define SYSCALL_POLL 80 //shit!? #define SYSCALL_CLONE 83 +#define SYSCALL_PIPE 84 // TODO! unnamed and named pipes (fifos) SYSCALL_MKNOD char* syscall_get_name(uint32_t num); uint32_t syscall_generic(uint32_t nr,uint32_t p1, uint32_t p2, uint32_t p3, uint32_t pid); -int chk_syscall_read(int file, char *buf, int len); + int syscall_open(char *name, int flags, int mode); int syscall_write(int file, char *buf, int len); |