44 lines
1 KiB
C++
44 lines
1 KiB
C++
#include <fcntl.h>
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#include <unistd.h>
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#include "disk_backend_nbd.h"
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#include "log.h"
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#ifdef ESP32
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#include <lwip/sockets.h>
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#else
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#include <sys/socket.h>
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#endif
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disk_backend_nbd::disk_backend_nbd(const std::string & host, const int port) :
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fd(socket(AF_INET, SOCK_STREAM, 0))
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{
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struct addrinfo hints, *res;
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int status;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_INET;
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hints.ai_socktype = SOCK_STREAM;
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char *host = "esp-942daf.local";
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char *port = "5556";
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status = getaddrinfo(host, port, &hints, &res)
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}
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disk_backend_nbd::~disk_backend_nbd()
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{
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close(fd);
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}
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bool disk_backend_nbd::read(const off_t offset, const size_t n, uint8_t *const target)
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{
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DOLOG(debug, false, "disk_backend_nbd::read: read %zu bytes from offset %zu", n, offset);
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return pread(fd, target, n, offset) == ssize_t(n);
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}
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bool disk_backend_nbd::write(const off_t offset, const size_t n, const uint8_t *const from)
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{
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DOLOG(debug, false, "disk_backend_nbd::write: write %zu bytes to offset %zu", n, offset);
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return pwrite(fd, from, n, offset) == ssize_t(n);
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}
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