gem5  v21.1.0.2
atomicio.hh
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28 
29 #ifndef __BASE_ATOMICIO_HH__
30 #define __BASE_ATOMICIO_HH__
31 
32 #include <unistd.h>
33 
34 namespace gem5
35 {
36 
37 // These functions keep reading/writing, if possible, until all data
38 // has been transferred. Basically, try again when there's no error,
39 // but there is data left also retry on EINTR.
40 // This function blocks until it is done.
41 
42 ssize_t atomic_read(int fd, void *s, size_t n);
43 ssize_t atomic_write(int fd, const void *s, size_t n);
44 
53 #define STATIC_MSG(fd, m) \
54  do { \
55  static const char msg[] = m; \
56  atomic_write(fd, msg, sizeof(msg) - 1); \
57  } while (0)
58 
67 #define STATIC_ERR(m) STATIC_MSG(STDERR_FILENO, m)
68 
69 } // namespace gem5
70 
71 #endif // __BASE_ATOMICIO_HH__
gem5::ArmISA::fd
Bitfield< 14, 12 > fd
Definition: types.hh:150
gem5::atomic_read
ssize_t atomic_read(int fd, void *s, size_t n)
Definition: atomicio.cc:38
gem5::ArmISA::s
Bitfield< 4 > s
Definition: misc_types.hh:561
gem5::atomic_write
ssize_t atomic_write(int fd, const void *s, size_t n)
Definition: atomicio.cc:67
gem5::ArmISA::n
Bitfield< 31 > n
Definition: misc_types.hh:455
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: decoder.cc:40

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