static int caca_select_driver(caca_display_t *dp, char const *driver)
{
char const *var = driver;
#if defined(HAVE_GETENV)
if(!var)
var = getenv("CACA_DRIVER");
#endif
#if defined(HAVE_STRCASECMP)
/* If the environment variable was set, use it */
if(var && *var)
{
#if defined(USE_COCOA)
if(!strcasecmp(var, "cocoa")) return cocoa_install(dp);
#endif
#if defined(USE_WIN32)
if(!strcasecmp(var, "win32")) return win32_install(dp);
#endif
#if defined(USE_CONIO)
if(!strcasecmp(var, "conio")) return conio_install(dp);
#endif
#if defined(USE_X11)
if(!strcasecmp(var, "x11")) return x11_install(dp);
#endif
#if defined(USE_GL)
if(!strcasecmp(var, "gl")) return gl_install(dp);
#endif
#if !defined(__KERNEL__)
if(!strcasecmp(var, "raw")) return raw_install(dp);
#endif
#if defined(USE_SLANG)
if(!strcasecmp(var, "slang")) return slang_install(dp);
#endif
#if defined(USE_NCURSES)
if(!strcasecmp(var, "ncurses")) return ncurses_install(dp);
#endif
#if defined(USE_VGA)
if(!strcasecmp(var, "vga")) return vga_install(dp);
#endif
#if !defined(__KERNEL__)
if(!strcasecmp(var, "null")) return null_install(dp);
#endif
return -1;
}
#endif
#if defined(USE_COCOA)
if(cocoa_install(dp) == 0) return 0;
#endif
#if defined(USE_WIN32)
if(win32_install(dp) == 0) return 0;
#endif
#if defined(USE_CONIO)
if(conio_install(dp) == 0) return 0;
#endif
#if defined(USE_VGA)
if(vga_install(dp) == 0) return 0;
#endif
#if defined(USE_X11)
if(x11_install(dp) == 0) return 0;
#endif
#if defined(USE_GL)
if(gl_install(dp) == 0) return 0;
#endif
/* ncurses has a higher priority than slang because it has better colour
* support across terminal types, despite being slightly slower. */
#if defined(USE_NCURSES)
if(ncurses_install(dp) == 0) return 0;
#endif
#if defined(USE_SLANG)
if(slang_install(dp) == 0) return 0;
#endif
/* Of course we don't try "raw" or "null" if the user did not
* specifically ask for them. */
return -1;
}
void KERNEL_CALL
os_main()
{
vga_install();
BRAG("Eve successfully switched to P-mode with paging enabled\n");
put_logo();
idt_install();
BRAG("ISRs & IRQs are on-line\n");
sys_call_table_install();
BRAG("System call table installed\n");
timer_install();
BRAG("PIT firing rate is %d Hz\n", _TIMER_RATE);
mm_install();
BRAG("Memory manager is installed\n", _TIMER_RATE);
//mm_print_info();
/*{
char* p;
SEPARATE
DBG_DUMP(p = sbrk(2));
DBG_DUMP(sbrk(0));
DBG_DUMP(*p);
DBG_DUMP(p[1]);
DBG_DUMP(p[4095]); // possable page fault
//DBG_DUMP(p[4096]); // page fault for sure
SEPARATE
DBG_DUMP(p = sbrk(4 * MEGABYTE));
DBG_DUMP(sbrk(0));
DBG_DUMP(p[0]);
DBG_DUMP(p[MEGABYTE]);
DBG_DUMP(p[4 * MEGABYTE]); // possable page fault
//DBG_DUMP(p[5 * MEGABYTE]); // page fault for sure
SEPARATE
DBG_DUMP(sbrk(-4 * MEGABYTE));
DBG_DUMP(p = sbrk(0));
DBG_DUMP(p[0]); // possable page fault
//DBG_DUMP(p[MEGABYTE]); // page fault for sure
DBG_DUMP(sbrk(-2));
DBG_DUMP(p = sbrk(0));
//DBG_DUMP(p[0]); // page fault for sure
}*/
/*{
char* p;
SEPARATE;
DUMP(sbrk(0));
DUMP(p = malloc(2));
DUMP(sbrk(0));
DUMP(*p);
DUMP(p[1]);
//DUMP(p[4095]); // possable page fault
//DUMP(p[4096]); // page fault for sure
char* q;
SEPARATE;
DUMP(q = malloc(4 * MEGABYTE));
DUMP(sbrk(0));
DUMP(q[0]);
DUMP(q[MEGABYTE]);
DUMP(q[4 * MEGABYTE]); // possable page fault
//DUMP(p[5 * MEGABYTE]); // page fault for sure
SEPARATE;
MARK(free(q));
DUMP(sbrk(0));
//DUMP(q[0]); // possable page fault
//DUMP(p[MEGABYTE]); // page fault for sure
MARK(free(p));
DUMP(sbrk(0));
//DUMP(p[0]); // page fault for sure
}*/
keyboard_install();
BRAG("Keyboard is on-line (US layout)\n");
// prepare tss segment
tss_install();
//BRAG("TSS is loaded\n");
// install resource manager before starting multitasking
rm_install();
// task manager
task_ring_node_t* pKernelNode = tm_install();
BRAG("Multitasking is enabled\n");
//print_task_tree();
// load shell app
gEshTaskOffset = (dword_t)&gKernelEnd;
tm_load_task((pointer_t) gEshTaskOffset, pKernelNode, ACC_USER, PRIOR_LOW, TRUE);
extern dword_t gNextTaskOffset;
gPingTaskOffset = gNextTaskOffset;
/* from this point on Kernel process will serve as a resources manager */
rm_start();
for (;;);
}
