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Add SpinLock to IDE disk access.
This forces serialization of accesses. This driver needs to be redesigned.
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parent
dec5683e9c
commit
8f6998c902
7 changed files with 57 additions and 13 deletions
10
LibC/pwd.cpp
10
LibC/pwd.cpp
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@ -5,6 +5,8 @@
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#include <sys/mman.h>
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#include <AK/String.h>
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extern "C" {
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struct passwd_with_strings : public passwd {
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char name_buffer[256];
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char passwd_buffer[256];
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@ -24,6 +26,10 @@ void setpwent()
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rewind(__pwdb_stream);
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} else {
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__pwdb_stream = fopen("/etc/passwd", "r");
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if (!__pwdb_stream) {
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perror("open /etc/passwd");
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}
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assert(__pwdb_stream);
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__pwdb_entry = (struct passwd_with_strings*)mmap(nullptr, getpagesize());
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set_mmap_name(__pwdb_entry, getpagesize(), "setpwent");
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}
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@ -67,6 +73,7 @@ struct passwd* getpwent()
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if (!__pwdb_stream)
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setpwent();
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assert(__pwdb_stream);
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if (feof(__pwdb_stream))
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return nullptr;
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@ -76,6 +83,7 @@ next_entry:
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char* s = fgets(buffer, sizeof(buffer), __pwdb_stream);
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if (!s)
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return nullptr;
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assert(__pwdb_stream);
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if (feof(__pwdb_stream))
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return nullptr;
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String line(s);
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@ -116,3 +124,5 @@ next_entry:
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strncpy(__pwdb_entry->shell_buffer, e_shell.characters(), e_shell.length());
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return __pwdb_entry;
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}
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}
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