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Searched refs:buf (Results 1 – 25 of 83) sorted by relevance

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/DragonOS/user/apps/dmesg/
H A Dmain.c10 char *buf = NULL; in main() local
15 len = klogctl(10, buf, len); in main()
22 buf = malloc(len); in main()
23 if (buf == NULL) in main()
32 len = klogctl(2, buf, len); in main()
55 len = klogctl(opt, buf, len); in main()
76 klogctl(8, buf, level); in main()
77 len = klogctl(2, buf, len); in main()
90 c[0] = buf[i]; in main()
93 if (content == 0 && buf[i] == '>') in main()
[all …]
/DragonOS/kernel/crates/crc/src/
H A Dcrc64.rs41 pub fn crc64_be(mut crc: u64, buf: &[u8]) -> u64 { in crc64_be()
42 for &byte in buf { in crc64_be()
57 pub fn crc64_rocksoft_generic(mut crc: u64, buf: &[u8]) -> u64 { in crc64_rocksoft_generic()
60 for &byte in buf { in crc64_rocksoft_generic()
73 let mut buf = [0u8; 1]; in crc64_be_single() localVariable
74 buf[0] = 0xaa; in crc64_be_single()
75 let crc = crc64_be(0, &buf); in crc64_be_single()
81 let buf = b"0123456789"; in crc64_be_multibytes() localVariable
82 let crc = crc64_be(0, buf); in crc64_be_multibytes()
/DragonOS/kernel/src/driver/base/block/
H A Dgendisk.rs53 buf: &mut [u8], in read_at()
56 if (buf.len() & (LBA_SIZE - 1)) > 0 { in read_at()
60 let blocks = buf.len() / (1 << self.block_size_log2 as usize); in read_at()
63 return self.block_device().read_at(lba, blocks, buf); in read_at()
74 pub fn read_at_bytes(&self, buf: &mut [u8], bytes_offset: usize) -> Result<usize, SystemError> { in read_at_bytes()
79 .read_at_bytes(bytes_offset, buf.len(), buf); in read_at_bytes()
96 pub fn write_at_bytes(&self, buf: &[u8], bytes_offset: usize) -> Result<usize, SystemError> { in write_at_bytes()
101 .write_at_bytes(bytes_offset, buf.len(), buf); in write_at_bytes()
112 pub fn write_at(&self, buf: &[u8], start_block_offset: BlockId) -> Result<usize, SystemError> { in write_at()
113 if (buf.len() & (LBA_SIZE - 1)) > 0 { in write_at()
[all …]
H A Dblock_device.rs310 buf: &mut [u8], in read_at_sync()
324 buf: &[u8], in write_at_sync()
357 buf: &mut [u8], in read_at()
359 self.cache_read(lba_id_start, count, buf) in read_at()
368 buf: &[u8], in write_at()
370 self.cache_write(lba_id_start, count, buf) in write_at()
379 buf: &mut [u8], in cache_read()
381 let cache_response = BlockCache::read(lba_id_start, count, buf); in cache_read()
386 let ans = self.read_at_sync(lba_id_start, count, buf)?; in cache_read()
390 let ans = self.read_at_sync(lba_id_start, count, buf)?; in cache_read()
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/DragonOS/kernel/src/filesystem/kernfs/
H A Dcallback.rs20 buf: &mut [u8], in read()
27 buf: &[u8], in write()
68 pub fn callback_read(&self, buf: &mut [u8], offset: usize) -> Result<usize, SystemError> { in callback_read()
71 return private_data.callback_read(buf, offset); in callback_read()
76 pub fn callback_write(&self, buf: &[u8], offset: usize) -> Result<usize, SystemError> { in callback_write()
79 return private_data.callback_write(buf, offset); in callback_write()
93 pub fn callback_read(&self, buf: &mut [u8], offset: usize) -> Result<usize, SystemError> { in callback_read()
96 return private_data.callback_read(buf, offset); in callback_read()
102 pub fn callback_write(&self, buf: &[u8], offset: usize) -> Result<usize, SystemError> { in callback_write()
105 return private_data.callback_write(buf, offset); in callback_write()
/DragonOS/user/apps/test_filemap/
H A Dmain.c21 char buf[12]; in main() local
22 buf[11] = '\0'; in main()
26 read(fd, buf, 11); in main()
27 printf("File content: %s\n", buf); in main()
57 read(fd, buf, 11); in main()
58 printf("File content: %s\n", buf); in main()
/DragonOS/user/apps/test_uart/
H A Dmain.c9 char buf[1] = {0}; in main() local
11 memset(buf, 0, 1); in main()
13 n = read(fd, buf, 1); in main()
17 printf("Received: %s\n", buf); // 打印接收到的数据 in main()
18 if (buf[0] == 'g') { in main()
/DragonOS/kernel/src/filesystem/procfs/
H A Dkmsg.rs60 pub fn read(&mut self, buf: &mut [u8]) -> Result<usize, SystemError> { in read()
64 LogLevel::DEFAULT => self.read_all(buf), in read()
65 _ => self.read_level(buf), in read()
70 fn read_all(&mut self, buf: &mut [u8]) -> Result<usize, SystemError> { in read_all()
71 let len = self.data.len().min(buf.len()); in read_all()
75 buf[0..len].copy_from_slice(src); in read_all()
81 fn read_level(&mut self, buf: &mut [u8]) -> Result<usize, SystemError> { in read_level()
90 let len = data_level.len().min(buf.len()); in read_level()
94 buf[0..len].copy_from_slice(src); in read_level()
103 pub fn read_clear(&mut self, buf: &mut [u8]) -> Result<usize, SystemError> { in read_clear()
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H A Dsyscall.rs57 buf: &mut [u8], in do_syslog()
67 SyslogAction::Read => kmsg_guard.read(buf), in do_syslog()
68 SyslogAction::ReadClear => kmsg_guard.read_clear(buf), in do_syslog()
/DragonOS/kernel/src/libs/
H A Dvec_cursor.rs102 pub fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), SystemError> { in read_exact()
103 if self.pos + buf.len() > self.data.len() { in read_exact()
106 buf.copy_from_slice(&self.data[self.pos..self.pos + buf.len()]); in read_exact()
107 self.pos += buf.len(); in read_exact()
114 pub fn read_u16_into(&mut self, buf: &mut [u16]) -> Result<(), SystemError> { in read_u16_into()
115 if self.pos + size_of_val(buf) > self.data.len() * size_of::<u16>() { in read_u16_into()
119 for item in buf.iter_mut() { in read_u16_into()
210 pub fn write_exact(&mut self, buf: &[u8]) -> Result<(), SystemError> { in write_exact()
211 if self.pos + buf.len() > self.data.len() { in write_exact()
215 self.data[self.pos..self.pos + buf.len()].copy_from_slice(buf); in write_exact()
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H A Dunistd.c7 unsigned char buf[32]; in swab() local
14 memcpy(buf, _src, transfer); in swab()
16 memcpy(_dest, buf, transfer); in swab()
H A Dprintk.c54 static int __do_vsprintf(char *buf, const char *fmt, int buf_size, va_list args) in __do_vsprintf() argument
62 str = buf; in __do_vsprintf()
72 end = buf + buf_size; in __do_vsprintf()
310 *ip = str - buf; in __do_vsprintf()
354 return str - buf; in __do_vsprintf()
364 int vsprintf(char *buf, const char *fmt, va_list args) in vsprintf() argument
366 return __do_vsprintf(buf, fmt, -1, args); in vsprintf()
378 int vsnprintf(char *buf, const char *fmt, int buf_size, va_list args) in vsnprintf() argument
380 return __do_vsprintf(buf, fmt, buf_size, args); in vsnprintf()
602 static char buf[4096]; // vsprintf()的缓冲区 in printk_color() local
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/DragonOS/kernel/src/net/socket/
H A Dunix.rs63 fn read(&self, buf: &mut [u8]) -> (Result<usize, SystemError>, Endpoint) { in read()
66 let len = core::cmp::min(buf.len(), buffer.len()); in read()
67 buf[..len].copy_from_slice(&buffer[..len]); in read()
74 fn write(&self, buf: &[u8], _to: Option<Endpoint>) -> Result<usize, SystemError> { in write()
80 let len = peer_inode.inner().write_buffer(buf)?; in write()
97 fn write_buffer(&self, buf: &[u8]) -> Result<usize, SystemError> { in write_buffer()
100 let len = buf.len(); in write_buffer()
104 buffer.extend_from_slice(buf); in write_buffer()
174 fn read(&self, buf: &mut [u8]) -> (Result<usize, SystemError>, Endpoint) { in read()
177 let len = core::cmp::min(buf.len(), buffer.len()); in read()
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/DragonOS/kernel/src/exception/
H A Dsysfs.rs151 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { in show()
159 let len = core::cmp::min(name.len() + 1, buf.len()); in show()
161 buf[..len].copy_from_slice(name.as_bytes()); in show()
182 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { in show()
188 return sysfs_emit_str(buf, &format!("{}\n", hwirq.data())); in show()
208 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { in show()
219 return sysfs_emit_str(buf, &format!("{}\n", irq_type)); in show()
239 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { in show()
245 return sysfs_emit_str(buf, &format!("{}\n", wakeup)); in show()
265 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { in show()
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/DragonOS/kernel/src/filesystem/sysfs/
H A Dfile.rs60 pub fn callback_read(&self, buf: &mut [u8], offset: usize) -> Result<usize, SystemError> { in callback_read()
64 let len = attribute.show(kobj, buf)?; in callback_read()
70 buf.copy_within(offset..offset + len, 0); in callback_read()
71 buf[len] = 0; in callback_read()
77 return bin_attribute.read(kobj, buf, offset); in callback_read()
83 pub fn callback_write(&self, buf: &[u8], offset: usize) -> Result<usize, SystemError> { in callback_write()
87 return attribute.store(kobj, buf); in callback_write()
91 return bin_attribute.write(kobj, buf, offset); in callback_write()
297 buf: &mut [u8], in read()
300 return data.callback_read(buf, offset); in read()
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/DragonOS/kernel/src/arch/riscv64/
H A Drand.rs3 let mut buf = [0u8; size_of::<usize>()]; in rand() localVariable
4 for x in buf.iter_mut() { in rand()
11 let x: usize = unsafe { core::mem::transmute(buf) }; in rand()
/DragonOS/user/apps/test_pty/
H A Dtest_pty.c31 char buf[256]; in main() local
32 ssize_t n = read(ptm, buf, sizeof(buf)); in main()
34 printf("read %ld bytes from slave: %.*s", n, (int)n, buf); in main()
/DragonOS/tools/debugging/logmonitor/src/backend/monitor/
H A Dmod.rs15 pub fn new(buf: &[u8]) -> Option<Self> { in new()
16 if buf.len() != std::mem::size_of::<T>() { in new()
19 buf.len(), in new()
24 let x = unsafe { std::ptr::read(buf.as_ptr() as *const T) }; in new()
/DragonOS/kernel/src/driver/video/fbdev/base/
H A Dfbsysfs.rs64 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { in show()
68 return sysfs_emit_str(buf, &format!("{}\n", name)); in show()
93 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { in show()
97 return sysfs_emit_str(buf, &format!("{}\n", bits_per_pixel)); in show()
195 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { in show()
199 return sysfs_emit_str(buf, &format!("{},{}\n", var_info.xoffset, var_info.yoffset)); in show()
224 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { in show()
229 buf, in show()
256 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { in show()
260 return sysfs_emit_str(buf, &format!("{}\n", fix_info.line_length)); in show()
[all …]
/DragonOS/user/apps/test_lo/src/
H A Dmain.rs11 let mut buf = [0; 1024]; in main() localVariable
12 let (amt, _src) = socket.recv_from(&mut buf)?; in main()
14 let received_msg = str::from_utf8(&buf[..amt]).expect("Could not read buffer as UTF-8"); in main()
/DragonOS/kernel/src/common/
H A Dprintk.h45 int vsprintf(char *buf, const char *fmt, va_list args);
56 int vsnprintf(char *buf, const char *fmt, int buf_size, va_list args);
78 int sprintk(char *buf, const char *fmt, ...);
H A Dstdio.h11 extern int vsprintf(char *buf, const char *fmt, va_list args);
13 extern int sprintk(char *buf, const char *fmt, ...);
/DragonOS/kernel/src/driver/disk/ahci/
H A Dahcidisk.rs74 buf: &mut [u8], in read_at()
76 assert!((buf.len() & 511) == 0); in read_at()
79 if count * 512 > buf.len() || check_length > 8_usize { in read_at()
113 let mut buf_ptr = buf as *mut [u8] as *mut usize as usize; in read_at()
118 let user_buf = verify_area(VirtAddr::new(buf_ptr), buf.len()).is_ok(); in read_at()
120 let x: Vec<u8> = vec![0; buf.len()]; in read_at()
218 buf.copy_from_slice(kbuf); in read_at()
230 buf: &[u8], in write_at()
232 assert!((buf.len() & 511) == 0); in write_at()
235 if count * 512 > buf.len() || check_length > 8 { in write_at()
[all …]
/DragonOS/kernel/src/driver/block/cache/
H A Dcache_block.rs43 pub fn data(&self, buf: &mut [u8]) -> Result<usize, BlockCacheError> { in data()
44 if buf.len() != BLOCK_SIZE { in data()
47 buf.copy_from_slice(&self.data); in data()
/DragonOS/kernel/crates/intertrait/macros/src/
H A Dgen_caster.rs58 fn new_fn_name(buf: &mut [u8]) -> &str { in new_fn_name()
59 buf[..FN_PREFIX.len()].copy_from_slice(FN_PREFIX); in new_fn_name()
62 .encode_lower(&mut buf[FN_PREFIX.len()..]); in new_fn_name()
63 unsafe { from_utf8_unchecked(&buf[..FN_BUF_LEN]) } in new_fn_name()

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