/*
** Setup a new buffer. Never fails.
*/
FDBUF *
fd_create(int fd,
int flags)
{
FDBUF *fdp;
A_NEW(fdp);
pthread_mutex_init(&fdp->refcnt_lock, NULL);
fdp->refcnt = 1;
fdp->flags = flags;
fdp->fd = fd;
pthread_mutex_init(&fdp->in_lock, NULL);
fdp->ungetc = -1;
fdp->in_start = 0;
fdp->in_end = 0;
fdp->inbufsize = FDBUF_INBUFSIZE;
fdp->inbuf = a_malloc(fdp->inbufsize, "FDBUF inbuf");
pthread_mutex_init(&fdp->out_lock, NULL);
fdp->lastc = -1;
fdp->outbuflen = 0;
fdp->outbufsize = FDBUF_OUTBUFSIZE;
fdp->outbuf = a_malloc(fdp->outbufsize, "FDBUF outbuf");
return fdp;
}
alex_al* relloc_al(alex_al* al)
{
if(al==NULL)
return NULL;
if(al->al_v==NULL)
{
al->al_v = (r_value*)a_malloc(sizeof(r_value)*DEF_AL_SIZE);
memset(al->al_v, 0, sizeof(r_value)*DEF_AL_SIZE);
al->al_size = DEF_AL_SIZE;
al->al_len=0;
}
else
{
if(al->al_size <= al->al_len)
{
int size = sizeof(r_value)*(al->al_size+DEF_AL_SIZE);
r_value* n_al_v = (r_value*)a_malloc(size);
memset(n_al_v, 0, size);
memcpy(n_al_v, al->al_v, sizeof(r_value)*al->al_size);
a_free(al->al_v);
al->al_v = n_al_v;
al->al_size +=DEF_AL_SIZE;
}
}
return al;
}
VSTRING *vstring_new(u8 *str, u32 min_size)
{
VSTRING *vs_new;
vs_new = (VSTRING *)a_malloc(sizeof(VSTRING));
vs_new->min = min_size;
if (vs_new->min <= 0)
vs_new->min = VSTRING_DEF_MIN;
if ( (str != 0) && ((strlen(str)+1) > vs_new->min) )
vs_new->size = strlen(str)+1; // +1 for null character at end of string
else
vs_new->size = vs_new->min;
vs_new->data = (u8 *)a_malloc(vs_new->size);
memset(vs_new->data, 0, vs_new->size);
if (str != 0)
{
strcpy(vs_new->data, str);
vs_new->data[strlen(str)] = 0;
}
return vs_new;
}
bool APerlinNoise2D::Init(int nBufferWidth, int nBufferHeight, float vAmplitude, int nWaveLength, float vPersistence, int nOctaveNum, ADWORD dwRandSeed)
{
// First try to release old resource;
Release();
int i, x, y, k;
m_dwSeed = dwRandSeed;
// generate loop back smoothed random buffer
if( nBufferWidth <= 0 || nBufferHeight <= 0 )
return false;
m_nBufferWidth = nBufferWidth;
m_nBufferHeight = nBufferHeight;
float * pValues = (float *) a_malloc(sizeof(float) * m_nBufferWidth * m_nBufferHeight);
if( NULL == pValues )
return false;
m_pValues = (NOISEVALUE *) a_malloc(sizeof(NOISEVALUE) * m_nBufferWidth * m_nBufferHeight);
if( NULL == m_pValues )
return false;
for(k=0; k<3; k++)
{
// First create random number buffer;
for(i=0; i<m_nBufferWidth * m_nBufferHeight; i++)
pValues[i] = RandFloat();
// Now smooth the random number buffer;
for(x=0; x<m_nBufferWidth; x++)
{
for(y=0; y<m_nBufferHeight; y++)
{
int n = y * m_nBufferWidth + x;
int nLastX, nNextX, nLastY, nNextY;
nLastX = x - 1;
if( nLastX < 0 ) nLastX += m_nBufferWidth;
nNextX = x + 1;
if( nNextX >= m_nBufferWidth ) nNextX -= m_nBufferWidth;
nLastY = y - 1;
if( nLastY < 0 ) nLastY += m_nBufferHeight;
nNextY = y + 1;
if( nNextY >= m_nBufferHeight ) nNextY -= m_nBufferHeight;
#define NOISEVALUEFUNC2D(x, y) (pValues[(y) * m_nBufferWidth + (x)])
m_pValues[n].v[k] =
1.0f / 16.0f * (NOISEVALUEFUNC2D(nLastX, nLastY) + NOISEVALUEFUNC2D(nLastX, nNextY) + NOISEVALUEFUNC2D(nNextX, nLastY) + NOISEVALUEFUNC2D(nNextX, nNextY)) +
1.0f / 8.0f * (NOISEVALUEFUNC2D(x, nLastY) + NOISEVALUEFUNC2D(x, nNextY) + NOISEVALUEFUNC2D(nLastX, y) + NOISEVALUEFUNC2D(nNextX, y)) +
1.0f / 4.0f * (NOISEVALUEFUNC2D(x, y));
}
}
}
a_free(pValues);
return InitParams(vAmplitude, nWaveLength, vPersistence, nOctaveNum);
}
A ga(I t, I r, I n, I *s) { I k=WP(t,r,n); A z=a_malloc(k);
AT(z)=t; AC(z)=1; AR(z)=r; AN(z)=n;
if (r==1) { *AS(z)=n; }
else if (r&&s) { ICPY(AS(z),s,r); }
gcpush(z);
R z;
}
A gcinit(VO) { I k=WP(BOX,1,NOBJS); A memory;
nmem=mtop=bytes=totbytes=0;
memory=a_malloc(k);
AT(memory)=BOX; AR(memory)=1;
AN(memory)=*AS(memory)=NOBJS;
objs=AAV(memory);
R memory;
}
bool AList::Init()
{
m_pHead = (ALISTELEMENT *)a_malloc(sizeof(ALISTELEMENT));
if( NULL == m_pHead )
return false;
m_pTail = (ALISTELEMENT *)a_malloc(sizeof(ALISTELEMENT));
if( NULL == m_pTail )
return false;
m_pHead->pData = m_pTail->pData = NULL;
m_pHead->pLast = m_pTail->pNext = NULL;
m_pHead->pNext = m_pTail;
m_pTail->pLast = m_pHead;
m_nSize = 0;
return true;
}
// 生成一个bnf tree node
tree_node* new_tree_node(int line, bnf_type b_t)
{
tree_node* n_t_n = (tree_node*)a_malloc(sizeof(tree_node));
memset(n_t_n, 0, sizeof(tree_node));
n_t_n->b_t = b_t;
n_t_n->line = line;
return n_t_n;
}
alex_al* _new_al(int def_count)
{
alex_al* ret_al = (alex_al*)a_malloc(sizeof(alex_al));
memset(ret_al, 0, sizeof(alex_al));
do
{
relloc_al(ret_al);
}while(ret_al->al_size <= def_count);
ret_al->al_len = (def_count <=0)?(0):(def_count);
return ret_al;
}
// initialise script
u8 *script_new()
{
if ( (state.script_size > 0) && (script_head == 0) )
{
script_head = a_malloc(state.script_size << 1);
#warning set_mem_rm0() not implemented
//set_mem_rm0();
}
script_next = script_head;
state.script_count = 0;
return script_head;
}
gc_node* gc_add(g_value g_v, e_gc_level gc_l)
{
gc_node* t_gc_node = (gc_node*)a_malloc(sizeof(gc_node));
memset(t_gc_node, 0, sizeof(gc_node));
t_gc_node->gc_value = g_v;
t_gc_node->gc_level = gc_l;
t_gc_node->next = alex_gc.gc_head;
alex_gc.gc_head = t_gc_node;
alex_gc.gc_size++;
return t_gc_node;
}
// does not bother to copy old string.
void vstring_set_size(VSTRING *vs, u32 new_size)
{
if (vs != 0)
{
if (new_size < vs->min)
new_size = vs->min;
if (vs->size < new_size)
{
a_free(vs->data);
vs->data = (u8 *)a_malloc(new_size);
vs->size = new_size;
//memset(vs->data, 0, new_size);
}
}
}
void vstring_shrink(VSTRING *vs)
{
if ( (vs != 0) && (vs->data != 0) )
{
u8 *new_data;
vs->size = strlen(vs->data)+1;
if (vs->size < vs->min)
vs->size = vs->min;
new_data = (u8 *)a_malloc(vs->size);
memcpy(new_data, vs->data, vs->size);
a_free(vs->data);
vs->data = new_data;
}
}
static void *a_realloc(void *ptr, size_t size)
{
#ifdef ALIGNED_MALLOC
return _aligned_realloc(ptr, size, ALIGNMENT);
#elif ALIGNMENT_HACK
long diff;
if (!ptr)
return a_malloc(size);
diff = ((char *)ptr)[-1];
ptr = realloc((char*)ptr - diff, size + diff);
if (ptr)
ptr = (char *)ptr + diff;
return ptr;
#else
return realloc(ptr, size);
#endif
}
bool AList::Insert(void* pDataToInsert, ALISTELEMENT * pElement, ALISTELEMENT ** ppElement)
{
ALISTELEMENT * pNewElement;
if( NULL == pElement )
return false;
pNewElement = (ALISTELEMENT *)a_malloc(sizeof(ALISTELEMENT));
if( NULL == pNewElement )
return false;
pNewElement->pData = pDataToInsert;
pElement->pLast->pNext = pNewElement;
pNewElement->pLast = pElement->pLast;
pNewElement->pNext = pElement;
pElement->pLast = pNewElement;
if( ppElement )
*ppElement = pNewElement;
m_nSize ++;
return true;
}
gc_node* gc_add_str_table(char* str, e_gc_level gc_l)
{
unsigned int index =0;
str_node* str_p = NULL;
str_node* back_p = NULL;
gc_node* gc_p = NULL;
str_node* t_s_n = NULL;
if(str==NULL)
return NULL;
index = gc_hash(str);
str_p = alex_gc.gc_str_table.str_ptr[index];
back_p = str_p;
while(str_p)
{
if(alex_strcmp(str_p->str, str)== 0)
return str_p->gc_p;
back_p = str_p;
str_p = str_p->next;
}
t_s_n = (str_node*)a_malloc(sizeof(str_node));
memset(t_s_n, 0, sizeof(str_node));
gc_p = gc_add(gc_new_g_v_str(str), gc_l);
t_s_n->str = gc_p->gc_value.sg_v.str;
t_s_n->gc_p = gc_p;
if(back_p== NULL)
alex_gc.gc_str_table.str_ptr[index] = t_s_n;
else
back_p->next = t_s_n;
return gc_p;
}
void sdl_callback(void *userdata, u8 *stream, int len)
{
s16 chan_data[len / (int)sizeof(s16)];
int stream_len, stream_count;
s16 *s_ptr, *c_ptr;
SDL_CHAN *ch;
int num_chan;
int output = 0;
#if WRITE_TO_DISK
DATA *new_data;
#endif
(void) userdata;
assert(stream);
if (chan_list != NULL)
{
num_chan = list_length(chan_list);
ch = list_element_head(chan_list);
stream_len = len / (int)sizeof(s16);
while (ch != NULL)
{
// get channel data(chan.userdata)
if (ch->avail)
{
if (ch->callback( ch->userdata, (u8 *)&chan_data, len) == 0)
{
// divide by number of channels then add to stream
stream_count = stream_len;
s_ptr = (s16*)stream;
c_ptr = (s16*)chan_data;
output = 1;
while(stream_count--)
*(s_ptr++) += *(c_ptr++) / num_chan ;
}
else
{
ch->avail = 0;
}
}
ch = node_next(ch);
}
}
#if WRITE_TO_DISK
new_data = list_add(list_data);
new_data->data = (u8 *)a_malloc(len);
memcpy(new_data->data, stream, len);
new_data->len = len;
#endif
if (!output)
{
sndgen_kill_thread();
// call shutdown routin
}
}
ABYTE* af_AllocFileBuffer(AWORD size)
{
return (ABYTE*)a_malloc(size);
}
int
s_getgrnam_r(const char *name,
struct group *grp,
char *buffer, size_t bufsize,
struct group **result)
{
#ifdef HAVE_GETPWNAM_R
int code;
memset(grp, 0, sizeof(*grp));
memset(buffer, 0, bufsize);
#ifdef HAVE_UI_GETPW /* Unix International / Solaris / UnixWare */
while ((*result = getgrname_r(name, grp, buffer, bufsize)) == NULL &&
errno == EINTR)
;
if (*result == NULL)
code = errno;
else
code = 0;
#elif HAVE_DCE_GETPW /* DCE/CMA */
while ((code = getgrnam_r(name, grp, buffer, bufsize)) != 0 &&
errno == EINTR)
;
if (code == 0)
*result = pwd;
else
code = errno;
#else /* Posix version */
while ((code = getgrnam_r(name, grp, buffer, bufsize, result)) == EINTR)
;
#endif
return code;
#else
struct group *gp;
int i, len;
pthread_once(&grp_once, grp_lock_init);
pthread_mutex_lock(&grp_lock);
gp = getgrnam(name);
if (gp == NULL)
{
pthread_mutex_unlock(&grp_lock);
*result = NULL;
return -1;
}
memset(grp, 0, sizeof(*grp));
grp->gr_name = strcopy(gp->gr_name, &buffer, &bufsize);
grp->gr_passwd = strcopy(gp->gr_passwd, &buffer, &bufsize);
grp->gr_gid = gp->gr_gid;
for (i = 0; gp->gr_mem[i]; ++i)
;
len = i;
grp->gr_mem = a_malloc(sizeof(char *) * (len+1));
for (i = 0; i < len; ++i)
grp->gr_mem[i] = strcopy(gp->gr_mem[i], &buffer, &bufsize);
grp->gr_mem[i] = NULL;
*result = grp;
pthread_mutex_unlock(&grp_lock);
return 0;
#endif
}
a_error_t udp_server(uint16_t port, udp_server_startup_callback startup, void *startup_arg, udp_server_callback func, void *arg, uint_fast8_t flags)
{
# if HAVE_WINSOCK2_H
SOCKET sock;
# else
int sock;
# endif
uint8_t buf[MAX_UDP_SIZE];
void *tmp = (void *)buf;
ssize_t buf_len;
struct sockaddr_in local;
struct sockaddr_in remote;
# if HAVE_SOCKLEN_T
socklen_t remote_len;
# elif HAVE_WINSOCK2_H
int remote_len;
# else
size_t remote_len;
# endif
# ifdef __WIN32__
if((sock = socket(AF_INET, SOCK_DGRAM, 0)) == INVALID_SOCKET)
return a_flail_winsock_su(a_error_socket);
# else
if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
return a_flail_posix_su(a_error_socket);
# endif
local.sin_family = AF_INET;
local.sin_addr.s_addr = INADDR_ANY;
local.sin_port = htons(port);
# ifdef __WIN32__
if(bind(sock, (struct sockaddr *)(&local), sizeof(local)) == SOCKET_ERROR)
return a_flail_winsock_su(a_error_bind);
# else
if(bind(sock, (struct sockaddr *)(&local), sizeof(local)))
return a_flail_posix_su(a_error_bind);
# endif
/* ok, we're ready to receive, tell our callback */
if(startup && !startup(sock, startup_arg))
{ /* call back told us to exit... */
# ifdef __WIN32__
if(!closesocket(sock))
return a_flail_winsock_su(a_error_close_socket);
# else
if(close(sock))
return a_flail_posix_su(a_error_close_socket);
# endif
}
do
{
remote_len = sizeof(remote);
if((buf_len = recvfrom(sock, (void *)(buf), MAX_UDP_SIZE, 0, (struct sockaddr *)(&remote), &remote_len)) < 0)
# if __WIN32__
return a_flail_winsock_su(a_error_recvfrom);
# else
switch(errno)
{
case EINTR: /* interrupt */
case EAGAIN: /* try again */
continue;
default:
return a_flail_posix_su(a_error_recvfrom);
}
# endif
if(flags & UDP_SERVER_FLAG_MALLOC)
{
if(!(tmp = a_malloc(sizeof(uint8_t) * (size_t)buf_len)))
return a_error_last();
memcpy(tmp, buf, (size_t)buf_len);
}
} while(func(remote.sin_addr, ntohs(remote.sin_port), sock, tmp, (size_t)buf_len, arg) && a_udp_server_go);
# ifdef __WIN32__
if(!(closesocket(sock)))
return a_flail_winsock_su(a_error_close_socket);
# else
if(close(sock))
return a_flail_posix_su(a_error_close_socket);
# endif
return 0;
}
