int sys_sbrk(void) {
int addr;
int n;
if (argint(0, &n) < 0)
return -1;
addr = proc->sz;
if (growproc(n) < 0)
return -1;
return addr;
}
int
sys_sbrk(void)
{
int addr;
int n;
if(argint(0, &n) < 0)
return -1;
if((addr = growproc(n)) < 0)
return -1;
return addr;
}
int
sys_sbrk(void)
{
int addr;
int n;
if(argint(0, &n) < 0)
return -1;
addr = proc->sz;
///cprintf("proc->sz = %d\n",proc->sz);
if(growproc(n) < 0)
return -1;
return addr;
}
int
sys_sbrk(void)
{
int addr;
int n;
if(argint(0, &n) < 0)
return -1;
if (proc->isThread == 1) {
addr = proc->parent->sz;
} else {
addr = proc->sz;
}
if(growproc(n) < 0)
return -1;
return addr;
}
int
sys_sbrk(void)
{
int addr;
int n;
if(argint(0, &n) < 0)
return -1;
addr = proc->sz;
int i;
for (i = 3; i >= 0; i--) {
if (proc->shmem[i] != NULL) {
if (addr >= proc->shmem[i])
return -1;
}
}
if(growproc(n) < 0)
return -1;
return addr;
}
int
sys_sbrk(void)
{
int addr;
int n;
if(argint(0, &n) < 0)
return -1;
addr = proc->sz;
if (n > 0){
if (addr + n >= KERNBASE){
return -1;
}
proc->sz += n;
} else {
if(growproc(n) < 0){
return -1;
}
}
return addr;
}